Autorefractor/Keratometer HRK

Autorefractor/Keratometer HRK
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
User’s Manual
Auto Ref/Keratometer HRK-7000/7000A
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Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
IMPORTANT NOTICE
!
WARNING
Potential electromagnetic or other interference between medical equipments and
other devices being operated together in the same environmental may expert an
adverse influence on functioning of the medical equipment. Non-medical
equipments not in compliance with the requirements of EN 60601-1 and EN
60601-1-2 should not be used together in the same environmental as the medical
equipments.
This equipment has been tested and found to comply with the limits for medical devices in
IEC 60601-1-2:2001. These limits are designed to provide reasonable protection against
harmful interference in a typical medical installation.
Power Cord
For use of equipment in rated voltage less than 125Vac,minimum 6A,Type SJT or SVT ,
18/3AWG,10A, max 3.0m long : One end with Hospital Grade Type, NEMA 5-15P Other
end with appliance coupler. For use of equipment in rated voltage less than
250Vac,minimum 6A,Type SJT or SVT , 18/3AWG,10A, max 3.0m long : One end
terminatesd with blade attachment plug(HAR) Type, NEMA 6-15P.
This product may malfunction due to electromagnetic waves caused by portable personal
telephones, transceivers, radio-controlled toys, etc. Be sure to avoid having objects such as,
which affect this product, brought near the product.
The information in this publication has been carefully checked and is believed to be entirely
accurate at the time of publication. HUVITZ assumes no responsibility, however, for possible
errors or omissions, or for any consequences resulting from the use of the information
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
3
contained herein.
HUVITZ reserves the right to make changes in its products or product specifications at any
time and without prior notice, and is not required to update this documentation to reflect such
changes.
©2004 - 2007 - Huvitz Co., Ltd.
-689-3, Gumjeong-dong, Gunpoci, Gyeonggi-do,
435-862, Republic of Korea
All rights are reserved. Under copyright laws, this manual may not be copied, in whole or in
part, without the prior written consent of HUVITZ Co., Ltd.
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Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
Contents
1.
2.
Introduction ................................................................................................................ 7
1.1.
Overview .......................................................................................................... 7
1.2.
Classification .................................................................................................... 7
Safety Information...................................................................................................... 8
2.1.
Overview .......................................................................................................... 8
2.2.
Safety Symbol .................................................................................................. 9
2.3.
Environmental Considerations ....................................................................... 11
2.4.
Safety Precaution ........................................................................................... 13
3.
Characteristics ......................................................................................................... 15
4.
Note for Use .............................................................................................................. 16
5.
Names and functions of each part ......................................................................... 17
5.1.
Main parts ...................................................................................................... 17
5.2.
Explanation on Switches in Front ................................................................... 20
6.
Installation of Equipment & Preparation of Measurement ................................... 21
7.
Exercise through Model Eye ................................................................................... 23
8.
Measurement ............................................................................................................ 29
8.1.
8.2.
Refractometry (REF Mode) ............................................................................ 31
8.1.1.
Manual Measurement Mode .................................................................. 32
8.1.2.
Auto Measurement Mode ...................................................................... 38
Keratometry (KER Mode) ............................................................................... 41
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
8.3.
9.
5
8.2.1.
Manual Measurement Mode ................................................................. 41
8.2.2.
Auto Measurement Mode ...................................................................... 44
Corneal Curvature / Refractive Power
Measurement Mode (K&R Mode) .. 45
8.3.1.
Manual Measurement Mode ................................................................. 45
8.3.2.
Auto Measurement Mode ...................................................................... 48
8.3.3.
Diverse Indications ................................................................................ 49
8.4.
Keratometry Peripheral Measurement (KER-P Mode) .................................. 50
8.5.
Measurement of Contact Lens Base Curve(CLBC Mode)............................. 54
8.6.
Intraocular Lens (IOL) Measurement Mode (IOL Mode)................................ 56
8.7.
Retro-ILLUM Measurement Mode (Retro-ILLUM Mode) ............................... 57
8.7.1.
Adjustment of Array and Focus ............................................................. 57
8.7.2.
Observation on Retro-Illum ................................................................... 61
8.7.3.
Storage .................................................................................................. 62
8.7.4.
Examination on the other eye ............................................................... 62
8.7.5.
Call for Stored Image ............................................................................ 63
8.7.6.
Return to measurement mode .............................................................. 64
Other Modes ............................................................................................................. 65
9.1.
Acuity Map Mode (Z-MAP Mode) .................................................................. 65
9.1.1.
Composition of Window ........................................................................ 65
9.1.2.
Change of Window ................................................................................ 67
9.2.
Measurement of Corneal Radius(SIZE Mode) .............................................. 69
9.3.
VIRTUAL COMPARISON Mode .................................................................... 73
9.4.
DISPLAY Mode .............................................................................................. 75
9.5.
User SETUP Mode ........................................................................................ 76
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Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
Power saving Function ................................................................................... 85
9.6.
10. Self diagnosis & Maintenance ................................................................................ 86
10.1.
Before calling for serviceman ......................................................................... 86
10.2.
Replacement .................................................................................................. 89
10.2.1. Printer paper .......................................................................................... 89
10.2.2. Chin rest paper ...................................................................................... 90
10.2.3. Replacing Fuse...................................................................................... 90
10.3.
Cleaning Equipment ....................................................................................... 91
10.4.
As changing the installation place of the equipment ...................................... 91
10.5.
Disposal ......................................................................................................... 91
11. Service Information .................................................................................................. 92
12. Main Specifications .................................................................................................. 93
13. Accessories .............................................................................................................. 95
14. Service Information .................................................................................................. 96
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
1.
1.1.
7
Introduction
Overview
Auto Ref/Keratometer HRK-7000A is the equipment to provide the information of
Spherical, Cylindrical and Axis while measuring the refraction of examinee’s eyes. Auto
Ref/Keratometer HRK-7000A is the equipment that can measure the corneal curvature
of examinee. In addition, it can measure PD (=distance in between pupils) and pupil
size. Especially, as its peripheral (=corneal peripheral curvature) measurement is
possible as measuring the corneal curvature of examinee, it is possible to know the
information on the corneal peripheral curvature as well as the corneal core curvature,
which enables the exact prescription for the examinee.
This equipment shall provide the optimal optometry information with the functions of IOL
(=measuring intraocular lens) and Retro-Illumination (=observing retro-illumination) to
obtain an optimal figure of the eyes’ state of examinee.
CLBC (Contact Lens Base Curve) measurement is also a basic function of this product.
The HRK-7000A is provided with an Auto-tracking function and a motorized chinrest
function.
Auto-tracking mechanism that automatically achieves alignment in the up/down,
right/left direction and focusing.
A motorized up/down chinrest allows the operator to easily adjust the height of the
chinrest.
1.2.
Classification
Classification of product : 2nd Grade Medical Instrument
Resistance against electric shock : Class I (earthed)
Protection class against electric : Type B
Protection against harmful ingress of water : Ordinary, IPX0
Degree of safety in the presence of a flammable anesthetics mixture with air or with
oxygen or with nitrous oxide : Not suitable for use in the presence of a flammable
anesthetics mixture with air or with oxygen or with nitrous oxide.
Mode of operation : Continuous
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Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
2.
Safety Information
2.1.
Overview
Safety is everyone’s responsibility. The safe use of this equipment is largely dependent
upon the installer, user, operator, and maintainer. It is imperative that personnel study
and become familiar with this entire manual before attempting to install use, clean,
service or adjust this equipment and any associated accessories. It is paramount that
the instructions contained in this manual are fully understood and followed to enhance
safety to the patient and the user/operator. It is for this reason that the following safety
notices have been placed appropriately within the text of this manual to highlight safety
related information or information requiring special emphasis. All users, operators, and
maintainers must be familiar with and pay particular attention to all Warnings and
Cautions incorporated herein.
!
WARNING
"Warning” indicates the presence of a hazard that could result in severe personal injury,
death or substantial property damage if ignored.
NOTE
"Note” describes information for the installation, operation, or maintenance of which is
important but hazard related if ignored.
!
CAUTION
“Caution” indicates the presence of a hazard that could result in minor injury, or
property damaged if ignored.
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
2.2.
9
Safety Symbol
The International Electrotechnical Commission (IEC) has established a set of symbols
for medical electronic equipment which classify a connection or warn of any potential
hazards. The classifications and symbols are shown below.
I and O on power switch represent ON and OFF respectively.
Type B Isolated patient connection.
It indicates the connection of signal input/output.
This symbol identifies a safety note. Ensure you understand
the function of this control before using it. Control function
is described in the appropriate User’s or Service Manual.
It indicates the year of manufacture and the manufacturer.
Identifies the point where the system safety ground is
fastened to the chassis. Protective earth connected to
conductive parts of Class I equipment for safety purposes.
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Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
Hot surface.
UL60601-1
CAN/CSA C22.2
NO.601.1
MEDICAL EUIPMENT
WITH RESPECT TO ELECTRIC SHOCK
FIRE AND MECHANICAL HAZARDS ONLY IN
ACCORDANCE
WITH
UL 60601-1, AND
CAN/CSA C22.2 NO.601.1
Disposal of your old appliance
When this crossed-out wheeled bin symbol is attached to a
product it means the product is covered by the European
Directive 2002/96/EC.
All electrical and electronic products should be disposed of
separately from the municipal waste stream via designated
collection facilities appointed by the government or the local
authorities.
The correct disposal of your old appliance will help prevent
potential negative consequences for the environment and
human health.
4. For more detailed information about disposal of your old
appliance, please contact your city office, waste disposal
service or the shop where you purchased the product.
Alternating Current
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
2.3.
Environmental Considerations
Please avoid the environment below for the operation and storage of the equipment.
Where the equipment is exposed to water vapor.
Don’t operate the equipment with wet hands.
Where the machine is exposed directly to the sunlight.
Where the temperature changes frequently (Normal
temperature for operation of the machine is at the range of
10°C ~ 35°C, and the humidity is at the range of 30%~70%.
Where any heaters are at the close distance to the machine.
Where the humidity is high and there are problems to the heat
dissipation and/or ventilation.
Where the equipment is subject to excessive shocks or
Vibrations.
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Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
Where the machine can be exposed to the chemical or
flammable substances.
Please keep the equipment out of dust and do not let
inserted any metal parts such as coins, clips, etc.
Do not disassemble or open the machine. The manufacture
shall have no responsibility for any problems caused by
these.
Do not close the thermal ventilation outlet.
Do not connect the AC power plug into the outlet while not
putting the parts of machine together completely. It can
harm the equipment.
Do not pull the plug out of outlet while holding the cord.
For the normal operation of the machine, please keep the ambient temperature is
10℃ ~ 35℃, humidity is 30% ~ 75% and atmospheric pressure is 800 ~ 1060hpa. For
the Transfortation of the machine, please keep the ambient temperature is -40℃ ~
70℃, humidity is 10% ~ 95% and atmospheric pressure is 500 ~ 1060hpa. For the
Storage of the machine, please keep the ambient temperature is -10℃ ~ 55℃,
humidity is 30% ~ 75% and and atmospheric pressure is 700 ~ 1060hpa. Avoid
environments where the equipment is exposed to excessive shocks or vibrations.
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
2.4.
13
Safety Precaution
This equipment has been developed and tested in conformity with domestic &
international safety standards and regulations, which guarantees the high stability of
this product. This guarantees a very high degree of safety for this device. The legislator
expects us to inform the user expressively about the safety aspects in dealing with the
device. The correct handling of this equipment is imperative for its safe operation.
Therefore, please read carefully all instructions before switching on this device. For
more detailed information, please contact our Customer Service Department or one of
our authorized representatives.
1.
This equipment must not be used (a) in an area that is in danger of explosions
and (b) in the presence of flammable, explosive, or volatile solvent such as
alcohol, benzene or similar chemicals.
2.
The device should neither be kept nor installed in the place with high humidity.
For the optimal operation, the humidity should be at the range of 30%~75%.
The machine should not be exposed to the place where water splashes, drips
or sprays. Do not place containers containing fluids, liquids, or gases on top of
any electrical equipment or devices
3.
The equipment must be operated only by, or under direct supervision of
properly trained and qualified person/s.
4.
Modifications of this equipment may only be carried out by Huvitz’s service
technicians or other authorized persons.
5.
Customer maintenance of this equipment may only be performed as stated in
the User’s Manual and Service Manual. Any additional maintenance may only
be performed by Huvitz’s service technicians or other authorized persons.
6.
The manufacturer is only responsible for effects on safety, reliability, and
performance of this equipment when the following requirements are fulfilled: (1)
The electrical installation in the respective room corresponds to the
specifications stated in this manual and (2) This equipment is used, operated
and maintained according to this manual and Service Manual.
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Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
7.
The manufacturer is not liable for damage caused by unauthorized tampering
with the device(s). Such tampering will forfeit any rights to claim under
warranty.
8.
The equipment may only be used together with accessories supplied by
Huvitz’s. If the customer makes use of other accessories, use them only if
there are usability under technical safety aspects has been proved and
confirmed by Huvitz or the manufacturer of the accessory.
9.
Only persons who have undergone proper training and instructions are
authorized to install, use, operate, and maintain this equipment.
10.
User’s manual or service manual should be kept in the place where the
persons in chare of operation and maintenance can access easily any time.
11.
Do not force cable connections. If a cable does not connect easily, be sure that
the connector (plug) is appropriate for the receptacle (socket). If you cause any
damage to a cable connector(s) or receptacle(s), let the damage(s) be repaired
by an authorized service technician.
12.
Please do not pull on any cable. Always hold on to the plug when
disconnecting cables.
13.
This equipment may be used for the international application related to
Refractometry and Keratometry according to this manual.
14.
Before every operation, proceed with visual inspection on the equipment
exterior to seek any mechanical damage(s) to ensure the proper functioning.
15.
Do not obstruct any ventilation outlet for proper heat dissipation.
16.
In case of any presence of smoke, spark or abnormal noise/smell from the
machine, please power off immediately and pull out the plug.
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
3.
15
Characteristics
1.
It is possible to measure the refractive power and corneal curvature with one(1)
set of the machine: Refractometry and Keratometry
2.
As the measurement range of refractive power is wide from-25D to +22D, it
can measure the severe myopia.
3.
As measuring the curvature, the minimum measurable pupil diameter is
Ø2.0mm.
4.
The equipment can measure the peripheral part of cornea so that user can see
the value of curvature and eccentricity of each point while consecutively
measuring the curvature of peripheral part around cornea to the direction of
90° degree to the upper/below/right/left from the core of cornea.
5.
The refractive error can be showed in the form of Zernike topographic map.
6.
The fogging technique which is applied to the internal fixed target is to make
the more accurate measurement possible while letting the eyes of patient at
the natural and comfortable state.
7.
It is possible to select the display type of Refractometry and Keratometry.
8.
It is possible to measure the distance in between pupils (PD).
9.
Through the retro-illumination, the HRK-7000A can observe the eyes’ condition
of cataract patients or the scratches on the surface of contact lenses. It can
store the two (2) images for each eye, and show the patients displaying them
on the monitor screen.
16
4.
Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
Note for Use
1.
Do not hit or drop the instrument. The instrument may be damaged by the
strong impact. The impact may damage the function of this instrument. Handle
it with care.
2.
The precision of measurement can be affected when the machine is exposed to
the direct sunlight or too bright indoor illumination. It is recommended to
perform the measurement in the dark optometry room.
3.
If you want to use it as connecting the device to other equipment, please follow
the guidance of our local representative.
4.
Sudden heating of the room in cold areas will cause condensation of vapor on
the protective glass in the measurement window and on optical parts inside the
instrument. In this case, wait until condensation disappears before performing
measurements.
5.
Make sure to keep the lens in examinee side is clean at all times. In case that it
has become dirty by dusts or other substances, it can cause errors in the
machine or affect the precision of measurement.
6.
In case of any presence of smoke, smell or noise during the use of machine,
please contact our local representative after plugging it off from the socket
(outlet).
7.
If you clean the surface of the equipment with organic solvents such as alcohol,
thinner, benzene, etc, it can damage the machine. So, please do not use them.
8.
In case of moving HRK-7000A, carry it holding the lower part of machine body
with both hands as fixing the stage after switching the machine off all the time.
9.
In case of no use of the machine for a long time, please put the dust cover on
the device after powering and plugging off.
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
5.
5.1.
17
Names and functions of each part
Main parts
[Figure 1. Front]
1. Height Adjustment Mark: Adjusts the eyes’ height of examinees
2. Operation Buttons: Selecting of functions
ٍ3. Operation Lamp : Indicates whether or not the electric power is on
4. Display Monitor: Monitor for measurement
5. Measurement Button: Performing the measurement by pressing it after focusing.
6. Operation Lever: Adjusting the focus by moving to the directions of forward/backward,
left/right, up and down.
7. Stage Fixing Lever: Fixing the stage
8. Monitor Brightness Adjusting Knob: Adjusting the brightness of monitor
9. Printer: Printing the measured results
10. Chinrest up/down button: Move up or down the chinrest.
11. Printer button: A button for printing of measuring results.
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Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
[Figure 2. Back Section]
1. Forehead Rest: Preventing the vibration by fixing the forehead
2. Measuring Object Lens: Measuring the image imaging on the retina of eyes.
3. Chin Rest: Preventing the vibration by fixing the chin
4. Power Switch: Switch for power on/off
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
[Figure 3. Bottom Section]
1. Power Supply Socket: A socket connecting to exterior power plug
2. Serial Interface Connector: A terminal connecting to the exterior equipment
3. Exterior Monitor Connection Connector: Connecting into the exterior monitor
4. Clamping Bolt: Fixing the system stage
NOTE
As connecting to exterior monitor, noise can appear on the monitor owing to the length
or kind of cable, and the quality of monitor.
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Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
5.2.
Explanation on Switches in Front
①
②
③
④
⑤
⑥
⑦
⑧
⑨
⑩
⑪
[Figure 4. Front Section Switches]
1. MODE Button: A switch to change the mode for measurement
2. DISP Button: A switch to indicate the measured results on the monitor
3. FOCUS Button: A switch to change Auto Focus mode.
4. AUTO Button: A switch to begin to perform the measurement manually or automatically 5.
5. IOL Button: A switch to measure the eyesight of cataract patients or patients undergone
IOL implantation.
6. FUNC Button: A switch to change the functions of ③, ④, ⑤ buttons
7. Comp Button: Virtual Comparison Function.
8. Z-MAP Button: A switch to iindicate Zernike Map.
9. VD Button: To change the VD(Vertex Distance) value.
10. SIZE Button : To measure size of pupil.
11. ILLUM Button: To check the status of the cornea, crystalline lens and contact lens by
freezing images
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
6.
21
Installation of Equipment & Preparation of Measurement
1. Release of Lock on Stage Section
Unlock the clamping bolt at the bottom part of Chin-rest of the machine by rotating
it counterclockwise, and change the stage fixing lever behind the joystick to the
direction of UNLOCK.
2. Connection of Power Cable
-
Put HRK-7000A on the table.
-
Insert the power cable into power connector
-
After checking that the power of the machine
at the bottom of the main body.
is off, insert the power plug into the AC outlet
(socket).
[ Figure 5. Connection of Power Cable ]
3. Inserting Chin Rest Paper
-
Pull out the pushing pins at left/right sides.
-
Insert the pushing pins into the holes at
-
Stick the chin-rest paper inserted with the
left/right sides of the chin-rest paper.
pushing pins onto the Chin-rest.
[ Figure 6. Inserting Chin-rest Paper ]
4. Installation of Printing Paper
Please refer to section 8.2 regarding the sequence of installation of printing paper.
5. Input of Message
Input the contents desirable to be printed such as name or address of hospital,
etc in the memory of message editing monitor in advance at all times.
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Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
6. Check of Setup
As for setup of corneal vertex distance, indication of CYL, unit of SPH/CYL,
indication type of corneal measurement, corneal equivalent curvature, date, etc,
please check them in SETUP mode.
7. Transmission to Other Machines
In case of transmitting the measured results to other machines, prepare other
machines while connecting the cable into the interface connector of this machine.
You can select the transmitting speed in the user’s SETUP mode. Please contact
to the agent where you bought this machine for details.
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
7.
23
Exercise through Model Eye
1. Power On of Main Body
-
Connect the power plug appropriately as
-
Let the power switch on.
-
Measuring screen appears as system
shown in the picture.
check is completed.
[Figure 7. Power Cable Connection]
2. Installation of Model Eye
-
As removing the chin-rest paper, insert
the pushing pins after adjusting the lower
hole of model eye to the hole of chin-rest.
[Figure 8. Model Eye Installation]
3. Release of Lock to Stage Section
-
Release the clamping bolt at the lower
cover of chin-rest of the machine by
rotating it counterclockwise, and convert
the stage fixing lever behind the joystick
to the direction of UNLOCK.
[Figure 9. Release of Lock to Stage Section]
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Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
4. Change to K&R, REF Modes
-
If “K&R” or “REF” is not indicated on the monitor, push the MODE button
until one of them is to appear.
5. Adjustment of Position for Measurement & Focus
-
Tilt the operation lever over the model eye until the bright dots appear
-
Adjust so that the bright dot shall come inside the array ring while
-
Adjust the focus so that the focus-adjustment circle symbol shall appear
around the internal array ring.
watching the monitor.
on the bright dot.
1.
Height Adjustment: Adjust it by rotating the operation lever or the chin-rest
height adjustment lever.
2.
Left/Right Adjustment: Adjust so that the bright dot shall come inside the
internal array ring by tilting the operation lever to the directions of left/right.
3.
Focus Adjustment: Adjust the focus so that the focus-adjustment circle
symbol shall appear on the bright dot by tilting the operation lever
forward/backward.
Auto-tracking Function
-
Press the FOCUS button for Auto-tracking Function.
1.
Perform rough alignment and focusing by manipulating the joystick to place
in the working range of auto-tracking.
2. When the device is placed within the working ranfe of auto-tracking, it
automatically starts alignment and focusing.
-
The mark is displayed, when the main body is not within the working
range of auto-tracking.
-
At that time, manipulrate the joystick or chinrest up/down button in the
direction of the as Figures.
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
Tilt the joystick slightly to the left.
Tilt the joystick slightly to the right.
Pull the joystick forward.
Pull the joystick backward.
25
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Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
Move the chinrest down.
Move the chinrest up.
[ Figure 10. When the main body is not within the working range of auto-tracking ]
Too close to the patient’s eye.
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
27
Optimum condition.
Too far from the patient’s eye.
[ Figure 11. Focusing Indicator]
External Array Ring
Internal Array Ring
[ Figure 12. Adjustment of Measuring Position & Focus ]
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Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
6. Measurement
1.
Manual Adjustment
①
Adjust the focus and position of model eye as like in the procedure of
adjusting measurement position & focus explained in the previous page.
②
Push the measurement switch. In case that the measurement is not
performed while the message of TRY AGAIN appears on the upper left
side of the monitor, push the measurement switch again after repeating
the procedure of (a).
③
Check whether diopter value is measured or not. In case that the
measured value is not satisfactory, measure it with the same way and
check it again.
2.
Automatic Adjustment
①
Push AUTO button at the bottom of monitor.
②
Adjust the position and focus of model eye as like in like in the procedure
of adjusting measurement position & focus explained in the previous page.
③
It the focus is well adjusted as the bright dot appears inside the internal
array ring and the focus-adjustment circle symbol appears on the bright
dot, then, the measurement starts automatically.
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
8.
29
Measurement
!
WARNING
If the following situations happen, contact to the agents of Huvitz after immediately
pushing the power switch off, and pulling the power cord out of AC Power
connection part.
● In case that smoke comes, or strange smell or sound is heard from the equipment.
● In case that liquid is poured to the machine, or metallic substance is inputted into
the equipment.
● In case that the equipment is fallen down, or the exterior case of it is broken
The keys change as follows as pushing FUNC button.
MODE
COMP
DISP
Z-MAP
FOCUS
VD
AUTO
SIZE
IOL
ILLUM
The change of measurement mode is to be set up as shown in the above figure as the
product is wrapped in Huvitz. IOL button is possible to use in K&R measurement mode
and REF measurement mode only. As pushing IOL button, the function of measuring
IOL is to be performed, and the function stops as pushing the button again (refer to the
section 8.6). The refractive power value measured according to the value of VD (Vertex
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Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
Distance) is to be indicated in the mode of refractive power measurement. As pushing
VD button, the refractive value according to VD value is to be indicated while the value
of VD changes from 0.0 to the values (12/13.5/15mm) selected in user SETUP Mode.
NOTE
As the equipment does not operate for over 5 minutes while the power switch is at the
state of “ON”, the power saving mode is to be performed. If you push any buttons in
the power saving mode, it is changed to the mode of measurement preparation.
Power ON
REF Mode
MODE button
Z-MAP button
Acuity Map
KER Mode
EXIT button
MODE button
K & R Mode
MODE button
DISPLAY button
KER-P Mode
MODE button
DISPLAY Mode
EXIT button
CLBC Mode
MODE button
[ Figure 13. Relation between each button and measurement mode ]
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
8.1.
31
Refractometry (REF Mode)
It is the mode to measure the refractive power solely.
1.
Let the power switch “ON”.
-
The measurement window as shown in the picture below appear on the
screen of monitor as system check is completed.
Indicating
measurement mode
Times to measure
the left-side eye
Times to measure
the right-side eye
[ Figure 14. REF Mode Screen ]
2.
Check the measurement screen appeared on the monitor.
NOTE
● If the measurement screen as shown in the above picture does not appear on the
monitor screen, let the power switch “ON” again in 10 seconds after switching it off. If
the measurement screen continues not to appear either, please contact to the agents of
Huvitz.
● If the image of measurement screen is dark, adjust the brightness by using the
brightness-adjustment switch.
32
Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
3.
Check the user Setup mode.
Check and select the diverse functions relating to measurement including VD
value or printing condition. Input the message wanted to be printed together with
measurement data (refer to section 9.5).
8.1.1.
Manual Measurement Mode
As pushing Auto button in the AUTO mode, it changes to the manual measurement
mode. If you change “Auto Start” to “OFF”, the auto measurement function can be
stopped.
①
Adjustment of Eye Height
- Let the examinee sit in front of the machine.
!
CAUTION
-Make sure that the examinee should not put his or her hands or fingers under chinrest. The hands or fingers can get injured.
-For the prevention of infection, cleanse the forehead-rest with a solvent such as
ethanol for every different examinee.
-To keep it clean, change the chin rest paper for every different examinee.
- Let the patient sit comfortably by adjusting
the table or chair of electric machine.
- Let the patient put his or her face on chinrest and his or forehead stick closely to the
forehead-rest.
- Adjust the examinee’s eye height to the
height array indicator by rotating the height
adjustment lever as shown in the picture.
[ Figure 15. Eye Height Adjustment ]
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
②
33
Adjustment of Measurement Position and Focus
!
CAUTION
Do not insert your hands or fingers between stage and base. Also, make sure that the
examinee should not put his or her hands or fingers there. Hands or fingers can get
injured.
- Pull the body of equipment to the front of user by using the operation lever.
- Let the right-side eye of examinee appear at the center of monitor screen by
slowly pushing and rotating the operation lever forward. At this time, let the
glittering bright dot come into the core of internal array ring.
- Ask the examinee to look at the internal fixed target.
- Adjust the focus so that the outline of bright dot can be apparent. If the focus is
adjusted appropriately, the circle symbol appears on the bright dot.
- Height Adjustment: Adjust it by rotating the
operation lever or chin-rest lever.
- Left/Right Adjustment: Move the operation lever
left and right so that the Outer Alignment Ring is
aligned with the Mire Image
[ Figure 16. Height Adjustment ]
- Focus Adjustment: Adjust it to the bright dot by tilting the operation lever
forward/backward.
34
Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
Manual/Auto
Iris
Pupil
External Array Ring
(Min. Radius of Iris
Φ2.0mm)
.
[ Figure 17. REF Manual Mode Screen ]
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
35
NOTE
●
●
●
●
③
As it is not enough to adjust it by tilting the operation lever, adjust it by pushing
the stage to the directions of left/right.
If the image does not appear well because it is too bright or dark, adjust the
brightness by rotating the knob at the bottom of HRK-7000A monitor(Brightness
adjustment).
As consecutively measuring the refractive power, there can be errors in the
measured value with regard to the examinee to which the adjustment power easily
intervenes.
As the bright dot and pupil can not keep the same axis during the consecutive
measurement, the error can be caused for measurement.
Measurement
- Push the measurement button.
- If you stay while pushing the measurement button, the measurement is to be
performed consecutively.
- As the measurement is completed, the measured result is to be indicated on the
screen of monitor.
- In case of the consecutive measurement, the result of the previous
measurement is indicated.
④
Repeated Measurement
- Measure repeatedly if necessary.
- The latest measured value is to be indicated every time new measurement is
performed.
- It shall memorize the measured values by 10 times for each left/right eye(except
for error). It can be seen on the screen of DISPLAY mode.
36
Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
⑤
Measurement of Counter-side eye
- Measure the left-side eye by pushing the stage to the direction of right while
holding the operation lever.
- As measuring the left/right eyes, the value of PD (Pupil Distance) is to be
indicated on the monitor.
Pupil Distance(PD)
[ Figure 18. Screen indicating the pupil distance ]
⑥
Print
- Print the measured result by pushing the PRINT button.
- The contents selected in SETUP mode is to be printed.(Refer to section 9.5)
- Cut the printing paper off from the end of it while lifting it.
- Put the name of examinee in the blank of NAME if necessary.
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
37
NOTE
● As it is printed, the values measured so far are to be removed.
● As a thermal printing record, the printed characters are easy to be faded away. Please
make it copied if you want to keep it for a long time.
[ Figure 19. Example of Print ]
38
Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
8.1.2.
Auto Measurement Mode
As pushing Auto button in Manual Measurement mode, it automatically changes to the
Auto measurement mode.
As the condition of good array between the machine and the measured eye is reached,
the measurement is to be performed automatically without pushing the STOP button.
①
Perform the ①, ② procedure of manual measurement mode.
②
Measurement
- As the array and adjusting the focus is completed, the measurement is to be
performed automatically.
- After the measurement of times (3 or 5 times) designated in user Setup mode is
performed, the measured result appear on the screen of monitor.
- Maximum of 10 units of data is to be stored, and you can re-check them in
DISPLAY mode.
[ Figure 20. Screen indicating Auto Measurement Mode]
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
③
39
Measurement of Another Eye
- Measure the left eye according to the same procedure by moving the stage to
the right side.
- As the measurement to both eyes is completed, the value of PD is to be
indicated automatically on the screen of monitor.
④
Print
- Push the PRINT button in case that the measurement is conducted to the one
eye only.
- In case of selecting the condition of A-Print as “ON” in Setup mode (refer to
section 9.5), the measured result is to be printed automatically as the
measurement of both eyes is completed.
- The message selected in Setup mode is to be printed together with the
measured data.
40
Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
- As the message of TRY AGAIN happens, please refer to the explanation below.
In case of TRY AGAIN
Management
Poor position adjustment
Measure it after adjusting the exact position
again.
As eyelid or eyelashes
hide the pupil
Let the examinee open the eye wide, or
measure it while pushing the upper eyelid of
examinee upward.
As the pupil is smaller
than Alignment Ring
This machine’s measurable min radius of pupil
is 2.0mm. Though it is possible to measure in
the bright place, make sure that the bright
illumination or sunlight shall not shed directly on
examinee’s eye.
As the examinee has the
disease such as cataract
The minor cataract can be measured in RetroIllum mode. As errors are worried to happen by
the scratch on cornea or turbidization of
crystalline lens, measure it in Retro-Illum mode.
Measure the corneal curvature of cataract
patient not in K&R mode, but in KER mode.
As the examinee has IOL
implanted
As measuring the refractive power of eye
implanted with IOL, measure it in IOL mode.
As Mire Image looks as if
it changed to tears
As Mire Image is not
apparent because the
cornea is dry
As Mire Image has been
transformed
irregularly
owing to strong negative
astigmatism or corneal
ailment.
As it exceeds the possible
range of measurement
Measure after letting the examinee blink several
times.
Impossible to measure
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
8.2.
41
Keratometry (KER Mode)
It is the mode to measure the corneal curvature solely.
Do not measure the base curve of hard contact lens in this mode. Please refer to
CLBC mode in section 8.5 regarding the base curve of hard contact lens.
1.
Check whether or not the screen of monitor is in measurement mode.
2.
KER Mode Selection
- Push MODE button until “KER” is to be indicated on the upper right side of the
screen.
3.
8.2.1.
Perform the same 2, 3 procedure of consecutive measurement of refractive power.
Manual Measurement Mode
①
Perform the adjustment of array and focus as like in the procedure of section 8.1.1.
②
Measurement
- Push the measurement button.
- The measurement continues to be performed as you keep pushing the
measurement button.
- As the measurement is completed, the measured result is to be indicated on the
screen of monitor. In case of the consecutive measurement, the result of
previous measurement is to be indicated.
42
Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
Iris
Pupil
External Array Ring
(Min. radius of pupil
Φ2.0mm)
[ Figure 21. Screen indicating KER mode ]
③
Perform the same 4, 5 procedure of the consecutive measurement mode of
refractive power.
④
Print the measured result through the same 6 procedure of section 8.1.1
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
[ Figure 22. Example of Print ]
43
44
Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
8.2.2.
Auto Measurement Mode
As pushing Auto button in Manual measurement mode, it is to be changed to Auto
measurement mode. As the condition of good array between the machine and
measured eye is reached, the measurement is to be performed without pushing the
measurement button.
①
Adjust the array and focus as like in procedure 2 of section 8.1.1
②
The measurement is to be performed automatically as like in procedure 2 of
section 8.1.2
③
Print the measured result as like in procedure 6 of section 8.1.1
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
8.3.
Corneal Curvature / Refractive Power
(K&R Mode)
45
Measurement Mode
This is the mode to consecutively perform the measurement of corneal curvature and
refractive power.
1.
Check whether or not the measurement screen appears on the screen of monitor.
2.
Keep pushing MODE button while selecting K&R measurement mode until “K&R”
is to be indicated on the upper right side of the screen.
3.
Perform the same procedure as 2, 3 procedure in consecutive measurement of
refractive power.
8.3.1.
Manual Measurement Mode
①
Perform the adjustment of array and focus as like in procedure 1, 2 of section 8.1.1.
②
Measurement
- Push the measurement button.
- As you keep pushing the measurement button, the measurement is to be
performed consecutively.
- As the measurement is completed, the measured result is to be indicated on the
screen of monitor.
- In case of consecutive measurement, the previous value is displayed.
46
Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
Iris
Pupil
Array Ring
Mire Image
[ Figure 23. Screen indicating K&R Mode ]
③
Perform the same procedure as like in procedure 4, 5 of section 8.1.1.
④
Print the measured result through the same procedure as like in procedure 6 of
section
8.1.1.
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
[ Figure 24. Example of Print ]
47
48
Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
⑤
Selection of Screen Indication Type
- In the measurement mode including the refractive power measurement, you can
designate the sign of astigmatic refractive power in SETUP mode.
- Also, you can indicate the measured data of refractive power on the screen
according to VD value in the measurement mode including the refractive power
measurement.
- In the measurement mode including corneal curvature measure, you can
designate the screen indication type (R1/R2/AXÆK1/K2/AXÆAR/CY/AX) in
SETUP mode.
8.3.2.
Auto Measurement Mode
As pushing Auto button in manual measurement mode, it is to be changed to auto
measurement mode.
As the condition of good array between the machine and measured eye is to be
reached, the measurement is to be performed automatically without pushing the
measurement button in Auto measurement mode.
①
Adjust the array and focus as like in procedure 2 of section 8.1.1.
②
The measurement is to be performed automatically as like in procedure 2 of
section 8.1.2.
③
Print the measured result as like in procedure 6 of section 8.1.1.
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
8.3.3.
49
Diverse Indications
Measurement
of Refraction
Measurement
of Curvature
Kind
Name
#
Indicating
low
reliability
+
OU
T
OU
T
C
OU
T
Exceeding
measurable
range
Exceeding
measurable
range
Exceeding
measurable
range
#
Indicating
low
reliability
+
OU
T
Exceeding
measurable
range
OU
T
Exceeding
measurable
range
C
OU
T
Exceeding
measurable
range
Meaning of
Signs
Measured
value of
low
reliability
SPH
exceeds
+22D
SPH
exceeds
–25D
CYL
exceeds
±10D
Measured
value of
low
reliability
Radius of
curvature
exceeds
10.2mm
Radius of
curvature
is less than
5.2mm
Corneal
astigmatism
exceeds
15.73D
Measures
Measure
again
Impossible
to
measure
Measure
again
Impossible
to
measure
50
Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
8.4.
Keratometry Peripheral Measurement (KER-P Mode)
It is the mode to measure the curvature of part around cornea. Based upon the center
of cornea, measure the curvature of part around cornea from the positions of up/down
and left/right direction. It is to indicate the relative eccentricity while comparing the
curvature of part around cornea with the curvature of corneal center.
NOTE
The eccentricity means how even the part around cornea is compared to the corneal center.
Generally, human cornea has the highest curvature and the longer the distance from the
corneal center is it gets more even. Consequently, in case of prescribing lens such as RGP
with corneal center curvature only, the patient can feel uncomfortable while putting on the
lens. It is possible to select the appropriate lens considering the characteristics of patient
by using the eccentricity of part around cornea calculated in KER-P mode.
①
Check whether or not the measurement screen appear on the screen of monitor.
②
Keep pushing MODE button while selecting KER_P mode until “KER-P” is to be
indicated on the upper right side of the screen.
③
Measurement of Corneal Center
- The initial measurement position is the corneal center, and it is indicated as
CENTER on the right upper side of screen. The curvature measured in the
corneal center is the same with the one measured in KER mode.
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
51
[ Figure 25. Screen indicating KER-P mode ]
In case of corneal center,
④
-
R1 : Radius of curvature on maximum meridian
-
R2 : Radius of curvature on minimum meridian
-
AX : Axis on the radius of curvature on maximum meridian
-
H-EC : Eccentricity of horizontal direction in the entire eyeball
-
V-EC : Eccentricity of perpendicular direction in the entire eyeball
-
A-EC : Average eccentricity of the entire eyeball
Measurement of part around cornea
The direction of part around cornea which is measure at present is to be indicated
52
Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
at the bottom of measurement mode indication.
Four(4) boxes are to be indicated in up/down, left/right side of Mire ring. Each box
indicates the proceeding state of measurement on part around cornea. If there is
the measured result around part of cornea where the box is located, the inside of
box is to be full with color: In case of no result, the box is to be indicated as an
empty box. The relevant box indicated at the part around cornea which is
measured now is to flicker.
Direction of part around cornea
⑤
-
Superior (SUP) : Upside from corneal center
-
Inferior (INF) : Downside from corneal center
-
Temple (TEM) : To the temple of examinee from corneal center
-
Nasal (NAS) : To the nose of examinee from corneal center
Sequence to measure the part around cornea
Measure it following the sequence of TEM -> SUP -> NAS -> INF
In case that the measurement in the direction of part around cornea becomes
difficult, the direction lamp (guidance LED light) is to radiate in order to draw the
examinee’s sight around Mire ring actually. After the examiner shall ask the
examinee to look at the light of direction lamp, then he or she can perform the
measurement by adjusting the focus of Mire ring.
In case of part around cornea (SUP, INF, TEM, NAS),
-
R1 : Radius of curvature on maximum meridian in periphery
-
R2 : Radius of curvature on minimum meridian in periphery
-
AX : Axis on the radius of curvature on maximum meridian in periphery
-
RM : Average curvature in periphery
-
EQ :Difference between diopter and corneal center
-
E : Eccentricity of periphery
You can change the present measurement position by pushing SEL button in
KER-P mode. If the measurement fails at the specific position, in case that remeasurement is needed, or as checking the measured result, you can change
the present measurement position by consecutively pushing SEL button.
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
[ Figure 26. Screen indicating KER-P Mode ]
53
54
Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
8.5.
Measurement of Contact Lens Base Curve(CLBC Mode)
It is the mode to measure base curve of contact lens (concave surface).
1.
Check whether or not the measurement screen appears on the screen of monitor.
2.
Keep pushing MODE button while selecting CLBC mode until “CLBC” is to be
indicated on the right upper side of screen.
3.
Adhesion of Contact Lens
- Put the surface of contact lens to be measured to the
upward direction.
- Contact lens is to be adhered by the surface tension.
- Be careful lest contact lens should be adhered tilting.
Also, make sure that air bubbles should not be
generated behind contact lens.
4.
Sticking of Model Eye
[ Figure 27. Adhesion of Contact Lens ]
- Fix the model eye stuck with contact lens with pushing pin after taking the chinrest paper away. Let contact lens directed to the
measurement window.
5.
Adjustment of Position and Focus
- Let Mire image come into the center of external
array ring by slowly pushing and rotating the
operation lever.
- Adjust the focus so that the outline of Mire image
can be seen most apparent. As the focus is
adjusted, the circle symbol appears on the bright
dot.
6.
[ Figure 28. Adhesion of Model Eye ]
Measurement
- Push the measurement button.
- As you keep pushing the measurement button, the measurement is to be
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
55
performed consecutively.
- As the measurement is completed, the measured result is to be indicated on the
screen of monitor.
NOTE
The measure result of astigmatic axis in base curve(concave surface) of contact lens
has the difference of 90° compared with the measured value of astigmatic axis in
the corneal curvature(convex surface).
[ Figure 29. Screen indicating CLBC Mode ]
7.
Print
- Press Print button.
56
Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
8.6.
Intraocular Lens (IOL) Measurement Mode (IOL Mode)
The cases that light is reflected from the surface of IOL, that the crystalline lens is in
opacity just like a cataract patient , or that the radius of pupil is very small can cause the
error in the measured value of refractive power. In these cases, measure it by pushing
IOL button.
In case of severe cataract, measure or observe it in Retro-Illum mode (refer to section
8.7).
1.
Selection of REF Mode or K&R Mode
- Keep pushing MODE button until “REF“ or ”K&R” is to be indicated on the right
upper side of screen.
2.
Perform the adjustment of array and focus according to procedure 1, 2 of section
8.1.1.
3.
Selection of IOL Mode
- Push IOL button (indicated as “REF-I” , “K&R-I”).
4.
Measurement
- Push the measurement button.
- As you keep pushing the measurement button, the measurement is to be
performed consecutively.
NOTE
Decenteredness and distortedness of eye implanted with IOL, or being right after
surgery can cause the error to the measured values as there is a case of deformation of
iris.
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
8.7.
57
Retro-ILLUM Measurement Mode (Retro-ILLUM Mode)
Retro-Illum measurement mode is the measuring function to use usefully in the
following cases.
1.
It is to examine the crystalline lens of patient who has the severe symptom of
cataract or undergoes it, or to measure its refractive power.
- Examine the degree of opacity of crystalline lens with the shape of light reflected
from retina while changing intensity of light shed on the eye.
- In case that the crystalline lens is not much in opacity, it is possible to measure
the sight refractive power of eye as well while observing the shape reflected
from retina.
2.
In case there are scratches on retina, observe the scratches: or observe whether
or not the penetration of light into IOL is uniform after the implantation surgery of
IOL.
8.7.1.
①
Adjustment of Array and Focus
Perform the adjustment of array and focus according to procedure 1, 2 of section
8.1.1.
②
As pushing ILLUM button after pushing FUNC button while selecting Ret-Illum
mode, the [Observe] screen below is to appear.
58
Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
[ Figure 30. Retro-illumination Observation Window ]
„
[Observe]
- As Ret-ILLUM mode is to be selected by pushing ILLUM measurement button,
[Observe] window is to appear on the screen together with Ret-Illum image
spread out reflected from retina.
- Diagnose the crystalline lens, opacity degree of cornea, and the degree of
corneal scratches by observing the state of this Ret-Illum image.
<User Menu>
MEA
: By using the joystick measurement button, you can store the observed
Ret. Illum image in memory while changing it as a static window.
MODE
: It is the button to change the window between [Observe] and [Measure].
DISP
: It is possible to divide the static window of Ret. Illum obtained by
measurement button by two (2), and to show it by enlarging it for each
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
left/right eye. By using
button and
59
button, select the image.
Also, as pushing SEL button, the selected Ret. Illum image is to be
enlarged. As pushing Print button amongst the menus of enlarged
window, it is possible to output the print of Ret. Illum image. If you push
EXIT button, it is to go back to DIS window again.
Button: It is the button to decrease the intensity of Ref LED for one (1) level.
Button: It is the button to increase the intensity of Ref LED for one (1) level.
Measurement Mode Return: As pushing EXIT button, it is to finish Ret. Illum mode,
and to return to the ordinary measurement mode.
„
[Measure]
- If you push Mode button in [Observe] window, it is changed to [Measure]
window.[Measure] window is to consecutively measure the sight refractive
power, astigmatism and astigmatic angle, and to show them together with RetIllum image on the screen at the same time.
60
Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
[ Figure 31. Retro-Illum. Measure Window ]
<User Menu >
MEA
: By using the joystick measurement button, you can store the observed
Ret. Illum image and the measured data of sight refractive power in
memory while changing it as a static window.
MODE
: It is the button to change the window between [Measure] and [Observe].
AUTO
: It is possible to divide the static window of Ret. Illum obtained by
measurement button by two (2), and to show it by enlarging it for each
left/right eye. By using
button and
button, select the image.
Also, as pushing SEL button, the selected Ret. Illum image is to be
enlarged. As pushing Print button amongst the menus of enlarged
window, it is possible to output the print of Ret. Illum image. If you push
EXIT button, it is to go back to DIS window again.
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
61
Button: It is the button to decrease the intensity of Ref LED for one (1) level.
Button: It is the button to increase the intensity of Ref LED for one (1) level.
Measurement Mode Return: As pushing EXIT button, it is to finish Ret. Illum mode,
and to return to the ordinary measurement mode.
8.7.2.
①
Observation on Retro-Illum
Adjustment of brightness of LED to measure refractive power
- In order to take a close look at Retro-Illumination image, change the intensity of
LED to measure refractive power by one (1) level using
button and
②
button.
Observation on Retro-Illumination Image
- Let LED to measure the refractive power to be at incidence to eye while
avoiding the part of opacity in crystalline lens by using the operation lever. It is
effective for observation on Retro-Illumination to let LED light be shed on part
around pupil.
NOTE
In order to protect the patient’s eyes, avoid examining the eyes over 30 seconds.
③
Stopping Image
- After adjusting the focus of image by using the operation lever, stop the image
by pushing the measurement button. If the stopped screen is not satisfactory,
stop the image again after returning to the original screen by pushing EXIT
button.
④
Measuring Refractive Power and Stopping Image
62
Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
- As pushing Mode button in [Observe] window, it is to be changed to [Measure]
window. At this time, as pushing Mode button again, [Observe] window is to
return. Position the bright dot which indicates LED light to shed on the eye so
that it can avoid the part of opacity of pupil by using the operation lever, and
stop the image and the measured value by pushing the measurement button
after well adjusting the focus of image appeared on the screen. If the stopped
image is not satisfactory, stop the image again after returning to [Measure]
window by pushing EXIT button.
NOTE
The opacity of crystalline lens caused by cataract can lead in errors of measured
value while causing the aberration by the decenteredness.
8.7.3.
Storage
If you want to store the stopped image in memory, push the measure button. You can
store max of two (2) images for each eye. If you want to return to [Observe] or[Measure]
window, please push EXIT button.
8.7.4.
Examination on the other eye
Perform the examination on the other eye and the storage of its image by the same way.
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
8.7.5.
63
Call for Stored Image
[ Figure 32. Window indicating Stored Image ]
①
In order to call the stored Ret-Illumination image for two eyes on the screen of
monitor, enter Display mode by pushing DISP button.
②
You can select each image stored in Display mode window by using the button of
or
③
.
As pushing EXIT button, it shall return from the enlarged window to the Display
window.
④
As pushing EXIT button in Display window, it is to return to [Measure] window.
64
Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
[ Figure 33. Window indicating stored image(enlarged) ]
8.7.6.
Return to measurement mode
As pushing EXIT button in [Observe] or [Measure] window, you can return to [REF],
[KER], [K&R], [KER-P] or [CLBC] measurement mode.
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
9.
65
Other Modes
9.1.
Acuity Map Mode (Z-MAP Mode)
Zernike Map indicates the distribution of refractive power in pupil area. Based upon the
wavefront of emmetropes, Z-Map is drawn as a kind of topographical map having the
elevation according the degree of distortion(aberration) of wavefront come from myopia
or hypermetropia. Z-Map is to measure the refractive power in REF or K&R mode, and
you can see it by pushing Z-MAP button.
9.1.1.
Composition of Window
[ Figure 34. Z-Map Window(Aberration) ]
66
Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
Map Level on the left side in window is the aberration value of wavefront, and it is the
color table to draw map. The max and min value of the aberration of measured
wavefront is indicated by the unit of micrometer(um). The wavefront aberration of
emmetropes is 0, and the severer the myopia and hypermetropia is, it is to have higher
wavefront aberration of (+) and (-) sign respectively.
By using the color table defined in Map Level, the map in the center of window is to be
drawn according to the areal wavefron aberration(refractive power) within pupil area.
Emmetropes is as in green, hypermetropia is as in blue, and myopia is indicated as in
red: the severer the abnormality of eye is, the thicker their colors become. In case
including astigmatism, the refractive power topography of oval type is to be drawn to the
direction of astigmatic axis.
[ Figure 35. Z-Map Window(Low Graph) ]
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
As pushing
67
button, it is changed to the graph which is to be seen as a
sectional diagram as the map is cut horizontally and perpendicularly.
Map information items indicated on right side of window are as follows.
- Side
: Right or Left
- Sph
: Spherical Aberration
- Cyl
: Cylinder Aberration
- Axs
: Cylinder Axis
- RMS
: Size of Wavefront Aberration (Root Mean Square)
- Max
: Max of Wavefront Aberration (um)
- Min
: Min of Wavefront Aberration (um)
9.1.2.
Change of Window
As changing the measurement position of examinee to left or right side by moving the
joystick, the map is to changed again as a result obtained in the measured direction.
[ Figure 36. Z-Map Window Change ]
68
Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
As the map is drawn for the first time, the guide message is to be indicated as
“Calculating Map” for some time of standby for calculation.
As changing the MAP item n user SETUP as ON, Zernike Map window is to be
indicated directly on right bottom in the measurement window of REF and KNR Mode.
[ Figure 37. Z-Map Window ]
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
9.2.
69
Measurement of Corneal Radius(SIZE Mode)
It is the mode to measure the corneal radius.
1.
Check the measurement window on the screen of monitor.
2.
Adjust the position and focus so that the image of eye to be measured can be
seen apparently.
3.
Push SIZE button after pushing FUNC button while selecting SIZE measurement
mode.
Iris
Perpendicular bar
Pupil
Corneal outline
Right eye
[ Figure 38. Window indicating Size Mode ]
70
Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
4.
Adjustment of measurement position and focus
- Ask the examinee to look at the internal fixed target.
- Adjust the position so that the pupil shall be in between two(2)
perpendicular bars by moving the operation lever.
- Adjust the focus so that the corneal corner can be seen apparently.
NOTE
As adjusting the focus on the iris, it is impossible to measure the radius of pupil exactly.
5.
Measurement
- As pushing the measurement button, the window shall be stopped.
button and
and
button and
button in the center is to adjust the movement of left bar,
button in right side is to adjust the movement of right bar.
- Move the relevant bar to left/right sides by pushing
button or
button.
- The measured value shall be indicated on the screen of monitor.
- Store the measured value by pushing the measurement button.
- The measured value is to be inputted beside “1” of right bottom of the screen. It
is to be inputted beside “AVG” of left bottom of the screen as well.
- As pushing MODE button, the stopped window is cancelled, and “2” of left
bottom of the screen is to be selected as the bar. Every time pushing MODE
button, “1” or ”2” is to be selected alternatively. If there was an error in “1” which
is the previous measurement, you can select “1” again.
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
71
Measuring Bar
Iris
Moving right perpendicular bar to right side
Moving right perpendicular bar to left side
Moving left perpendicular bar to right side
Moving left perpendicular bar to left side
Selecting measured value1,2
Terminating measuring size of pupil
[ Figure 39. Window indicating Size Mode Measurement ]
6.
Repetition of Measurement
- Repeat the measurement in the entry of measured value as many times as you
need. Repeat the procedure of 2~4 as performing the measurement again.
72
Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
Measured value
Measured value
Average
[ Figure 40. Window indicating repletion of Size Mode Measurement ]
7.
Measurement of the other eye
- Measure the other eye in the same way while holding the operation lever and
pushing the stage to the counter direction.
8.
Printout of Measured Result
- The measured result of corneal radius is to be printed out as the item of
“[CORNEAL SIZE]” in the built-in printer.
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
9.3.
A
73
VIRTUAL COMPARISON Mode
Virtual
comparison
Function
allows
the
patient
to
compare
the
current
view(uncorrected eye view) with the view corrected by AR measurement.
By changing the distance to the chart, the patient can experience the virtual comparison.
1.
Perform AR measurement.
2.
Press the COMP button
3.
Press the COMP button again(uncorrected eye or LM Data)
-
SE value of LENS : LENS METER data or uncorrected eye
-
SE value of REF : corrected eye by AR measurement(The value of AR
measurement can be set by +INC/-DEC buttons)
4.
Pressing the COMP button switches between the corrected view and the
uncorrected view.
5.
6.
If necessary, switch to the view for near vision
-
Press the near button(40cm)
-
f necessary, switch to the view with addition power
-
Pressing the ADD button(+1.75D)
-
Pressing the ADD button again cancels the addition power
Press the Exit button to finish the virtual comparison function and return to the
measurement screen.
7.
Measure the other eye in the same manner.
When finishing the measurement, print the data out.
.
74
Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
[ Figure 41. Display of VIRTUAL COMPARISON Mode ]
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
9.4.
75
DISPLAY Mode
You can see the measured results(Max ten(10) units of data) stored in memory in this
mode. As pushing DISPLAY mode in the measurement mode, it changes to DISPLAY
Mode. It returns to the measurement mode as pushing EXIT button again.
NOTE
● In case of K/R mode, the page changes as pushing REF button or KER button.
● As pushing print button, the measured result stored in memory is to be printed out
through the built-in printer, and it is removed completely for the new measurement.
1.
Measured Result of Refractometry
①
It indicates the latest measured result of max amount of ten(10)
times(refractive power of left/right eyes). As pushing CLEAR button, the stored
data is to be removed.
[ Figure 42. Measured Result of Refractory ]
76
Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
2.
Measured Result of Keratometry
②
It indicates the latest measured result of max amount of ten(10)
times(refractive power of left/right eyes). As pushing CLEAR button, the stored
data is to be removed.
[ FIgure 43. Measured Result of Keratometry ]
9.5.
User SETUP Mode
It is to perform many setups relating to measurement, print-out, etc. As pushing
MODE button for seconds(2~3 seconds), it enters SETUP mode.
1.
Measurement of Refraction/Cornea
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
77
[ Figure 44. Setup Mode Information (page 1) ]
[How to change page]
As pushing PAGE button, it is to enter the next page.
[How to change item]
Select the wanted item while pushing
button or
button.
[How to change content]
As pushing
button or
button, the content changes. The selected content
is to be indicated as yellow character length.
NOTE
You should change some contents in other way. The procedure of relating setup change
is to be ordered under the explanation on each item.
78
Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
[How to enter the measurement mode]
As pushing EXIT button, window as below is to pup up.
Cancel : As intending to return to Setup mode again.
Save & Exit : As intending to store the content and to return to the measurement
mode
Exit without saving : As intending to return to the measurement mode without
storing
After pushing
button or
button toward the wanted item and selecting it,
push SEL button.
[Content of Item] : 1/4 Page
VD
Corneal Vertex Distance
CYL
Astigmatism Indication Type
INC-R
Indication Unit of SPH and CYL
MAP
Z-Map window to pop up in measurement window of REF Mode
mm/D
Indication Type of Corneal Measurement
mm
R1 ····· Radius of curvature on maximum meridian
R2 ····· Radius of curvature on minimum meridian
AX ······Axis on the radius of curvature on maximum meridian
D
K1 ······Refractive power on minimum meridian
K2 ······Refractive power on maximum meridian
AX ······Axis on minimum meridian
AVG
AR ······Average radius of curvature
CY ····· Corneal astigmatism
AX ····· Axis of Corneal astigmatism
INC-K
Increment of corneal power and astigmatism
INDEX
Corneal equivalent refractive index
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
2.
79
Serial number, Date & Time, Type of Output
[ Figure 45. Setup Mode Information (page 2) ]
[Content of Item] : 2/4 Page
[COUNT] Selection whether or not to use serial number
[NO.]
Setup of Serial Number : As pushing
button or
button, the serial
number is to change by the unit of ‘1’ each time.
AUTO START
[MODE]
You can select “ON” or ”OFF” of AUTO START MODE.
Select “ON” or “OFF” mode while pushing
button or
button.
[TYPE] It is to measure in AUTO START Mode consecutively three(3) times only.
It is to measure in AUTO START Mode consecutively five(3) times only. It
is to measure in AUTO START Mode consecutively.
80
Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
COMMUNICATION
[BPS]
Setup for communication to other machines
Select the one among 9600, 57600, and 112500bps as its data transfer
rate.
[RS232] Setup of transmission method(method and version of other equipment)
[ Figure 46. Setup Mode Information (page 3) ]
[Content of Item] : 3/4 Page
DATE & TIME
[DISP]
Date & Time
Setup of indication sequence of year/month/date
YMD : Year/Month/Date
MDY : Month/Date/Year
DMY : Date/Month/Year
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
[SET]
PRINT
[A-PRT]
After selecting item by pushing
button or
the value by using
button.
button or
81
button, you can change
Print Setup
In case of measuring in AUTO START Mode, it is to print out the
measured result automatically as the each measurement to left/right
eyes is completed one after the other.
[R-PRT]
Refractometry -Output type of built-in printer for the measured result of
Refractometry
STD : The measured result & average value of max ten(10) times
are to be printed out
AVE : Only average value is to be outputted printed out
OFF : It is not to be printed out
[K-PRT]
Output type of built-in printer for the measured result of Keratometry
STD : The measured result & average value of max ten(10) times
are to be printed out
AVE : Only average value is to be printed out
OFF : It is not to be printed out
[EYE]
ON : Pictures of eye & refraction according to the measured result of
Refractometry is to be outputted.
OFF : It is not to be printed.
82
Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
[ Figure 47. Setup Mode Information (page 4) ]
[Content of Item] : 4/4 Page
PRINTER MESSAGE
Input the measured data and message to be outputted
through printer by using the function of internal printer
message input. It can print 26 units of characters on
two(2) lines.
[MSG1]
Character input for the first line
[MSG1]
Character input for the second line
-
Character Input
As pushing
button or
button, the character board is to pop
up. After selecting the line by
button or
button again, input
them by using SEL button while selecting characters pushing
b
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
button or
83
button.
VIRTUAL COMPARISON
[NEAR]
The near working distance of the chart can be set.
[ADD]
The addition power can be set.
[ Figure 48. Character Input ]
ETC
[LANG]
Other Setup
You can select the characters indicated on the screen among the
supported multi languages. Select one among English, Chinese,
Spanish, German and French.
[BEEP]
Setup of Beep sound
84
Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
.
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
9.6.
85
Power saving Function
The power saving function begins to operate if you do not operate the machine at all
for five(5) minutes or so. It is to return to the measurement mode as pushing any
button optionally in saving mode.
86
Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
10. Self diagnosis & Maintenance
10.1. Before calling for serviceman
In case that abnormality happens or the machine operates abnormally, a warning sign
is to be indicated. In this case, perform the settlements below.
If the machine does not return to the normal condition in spite of the measures below,
contact to the agent where you bought the machine after switching the power off.
①
As the power switch is on
Message
Cause
Motor Error
Method of settlement
Re-input the power in 10
seconds after switching it
EEPROM Error
Internal abnormality for the
off.
In
case
that
the
EEPROM Data Error
equipment
System Error
REF
INVALID SETUP DATA KER
is
indicated
again, contact our sales
representative.
Clock Error
INVALID SETUP DATA —
message
Abnormality in the internal
Please contact our sales
data for Refractometry
representative.
Abnormality in the internal
Please contact the selling
data for Keratometry
agent.
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
②
87
Messages during measurement
Message
Cause
Method of Settlement
Refer to page 15
TRY AGAIN
Refer to page 15
Objective glass in the measurement
Clean the glass
window is polluted
Sphere of examinee’s eye exceeds
+22D
Impossible to
Curvature radius of examinee’s eye
measure
+ OUT
exceeds 10.2mm
Object
lens
within
measurement
Clean the glass
window is polluted
Sphere of examinee’s eye exceeds 22D
Impossible to
Curvature radius of examinee’s eye is
measure
- OUT
less than 5.0mm
Objective
glass
in
measurement
Clean the glass
window is polluted
Astigmatism
of
examinee’s
eye
exceeds 10D
Impossible to
Corneal astigmatism of examinee’s
Measure
C OUT
eye exceed 15D
Object
lens
within
measurement
Clean the glass
window is polluted
88
Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
③
Message as printing
Message
Cause
Method of settlement
-There is no printer paper or
Install printer paper or close
lever is not closed.
the lever.
CHECK PAPER
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
89
10.2. Replacement
10.2.1. Printer paper
As red line appears on the paper, immediately change the print paper with new one.
①
Open the printer cover.
②
Cut the paper inserted in the printer, and take it away from it. Take paper roll
together with shaft out of the printer, and pull the rotating shaft away from paper
roll.
③
Put the rotating shaft into the new roll.
④
Put the paper inserted with the rotating shaft into the printer case.
⑤
Fix the paper onto the printer. At this time, adjust the length of paper so that it can
come out from the paper outlet of the printer cover.
⑥
Close the cover after inserting the end of paper into the hole of cover.
[ Figure 49.
Opening cover ]
[ Figure 50.
Changing paper ]
[ Figure 51
Fixing pape
90
Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
10.2.2. Chin rest paper
①
Pull two(2) pins out of the chin-rest.
②
Push the pins into the holes of chin-rest paper. You can put 50 sheets of it on.
③
Insert the pins into each one of two(2) holes in the chin-rest.
10.2.3. Replacing Fuse
①
Turn off and raise the HRK-7000A with two arm carefully.
②
Remove the Power cord
③
Pick the fuse holder out from the Power inlet
④
Exchange the fuses
⑤
Insert the fuse folder
!
INFORMATION
Use 250V, T3.15AL fuse for the Auto Ref/Keratometer HRK-7000A.
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
91
10.3. Cleaning Equipment
①
The equipment should be kept as clean basically. Do not use the solvents such as
strongly volatile substance, thinner, benzene, etc.
②
Put some soapy water to the soft cloth, and twist the water out of the cloth. Then,
polish each part of the equipment.
③
As polishing the parts of lens or glass, get rid of dusts on the surface of lens with
wind-blower and use a dry cloth.
10.4. As changing the installation place of the equipment
① Off the power switch of main body.
② Take the power connection cable apart.
③ Lock the clamping bolt by rotating it clockwise.
④ Move it while maintaining the horizontality of it by holding the bottom of the main
body.
10.5. Disposal
NOTE
To dispose the instrument, accessories, and components, follow local governing
ordinances and recycling plans regarding disposal or recycling of instrument or device
components. Especially a lithium battery may pollute the environment if the instrument
or a lithium battery is abandoned.
When disposing packing materials, sort them by the materials and follow local
governing ordinances and recycling plans.
92
Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
11. Service Information
Repair: If the problem is not solved in spite of the settlement according to the contents
of chapter 10, please contact to Huvitz’s agent with the information on the following
items.
④
Name of Equipment Type : HRK-7000A
⑤
Typical No. of Equipment : Typical number consisted of 8 digits and characters
written on its name plate
⑥
Explanation on its symptom : Description in details
Supply of parts required for repair:
⑦
The preservation period of parts required for repair of this machine is by eight (8)
years after stopping to produce the product.
Parts to be repaired by qualified service manpower :
⑧
Parts below are consumable in their characteristics, or the quality of them shall de
degraded after the long time use. User should not replace them by him or herself.
Please contact to Huvitz’s agent for the replacement if these parts are consumed
enough or degraded by the long time use.
⑨
Back-up battery for clerk and data
!
CAUTION
As this machine use lithium battery, the reckless abandon of the machine itself or the lithium
battery can cause the environmental pollution. Please contact to the professional waste
disposal company.
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
12. Main Specifications
Measurement Mode
Continuous Keratometry & Refractometry (K/R Mode)
Refractometry (REF Mode), Keratometry (KER Mode)
Keratometry Peripheral (KER-P Mode)
Base Curve of Contact Lens(CLBC Mode)
Refractometry
Vertex Distance(VD)
0.0, 12, 13.5, 15.0
-25.00 ~ +22.00D
SPH
(In case of VD=12mm)
CYL
0.00 ~ ±10.00D (0.12/0.25D Unit)
Axis(AX)
1 ~ 180˚ (1˚ Unit)
Cylinder Form
-, +, MIX
Pupil Distance(PD)
10 ~ 85mm
Minimum pupil diameter
Ø2.0mm
Keratometry
Radius of Curvature
5.0 ~ 10.2mm (0.01mm Unit)
33.00 ~ 67.50D (In case that the corneal
Corneal Power
equivalent
refractive
power
0.05/0.12/0.25D Unit)
Corneal Astigmatism
0.0 ~ -15.00D
(Increments: 0.05/0.12/0.25D)
Axis
1 ~ 180˚ (1˚ Unit)
Corneal diameter
2.0 ~ 14.0mm (0.1mm Unit)
is
1.3375,
93
94
Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
Working range of auto-tracking
Up & Down
± 15 mm
Right & Left
± 5 mm±2mm
Back & Forth
± 5 mm±2mm
Working range of auto-shooting
Up & Down
± 0.13 mm or less
Right & Left
± 0.13 mm or less
Back & Forth
± 0.5 mm or less
Movable range of horizontal direction(by joystick)
Up & Down
30 mm or more
Right & Left
92 mm or more
Back & Forth
38 mm or more
Data Storage
Measured value of ten(10) times amount for each left/right eye
Hardware specification
Built-in printer
Line printer of heat printing type
As stopping to measure for about 5 minutes,
Power saving function
the main power is shut. It returns as pushing
buttons.
Monitor
TFT LCD Color Monitor of 6.5”
Electrical Power
AC100 ~ 240V, 50/60Hz
Current
1A
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
95
13. Accessories
[ Figure 53. Accessories ]
1. Power Cable(AC 220V / 60Hz Power plug or other)·····························1 unit
2. Model Eye (Sph —5.0D~-5.5D)·····················································1 unit
3. Chin Rest Paper(100 sheets)··················································· 1 bundle
4. Printer Paper········································································2 rolls
5. Wind-blower·············································································1 unit
6. Dust Cloth··············································································1 piece
7. Fuse(250V / 3.15A)····································································2 units
96
Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
14. Service Information
If the instrument appears malfunctioning, before calling a customer service, it is
highly recommended to check the instrument according to the troubleshooting
procedure in section 11 of this manual.
If any problem persists or the instrument is damaged or malfunctioning, contact
Huvtiz or local distributor for service with the following information:
„ Name of the instrument: Auto Ref/Keratometer MRK-3100P
„ Serial number of the instrument: refer to the 9-digit number on its product
label or name plate
„ Descriptions of Problem: In detail
Date of Purchase:
Dealer’s Name:
Dealer Address:
Dealer Phone No.:
Model No.:
Serial No.:
(Ú Huvitz recommends customers to fill up the following form after purchase and retain
this manual as a permanent record of purchase.)
Write us at:
Tel: +82-31-442-8868
HUVITZ Co., Ltd.
Fax: +82-31-442-8619
Huvitz B/D, 689-3 Geumjeong-dong
URL:http://www.huvitz.com
Gunpo-si Gyeonggi-do, South Korea
e-mail: [email protected]
435-862
--------------------------------------------------------Auto Ref/Keratometer HRK-7000/7000A
97
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