User's Manual - Frank's Hospital Workshop

User's Manual - Frank's Hospital Workshop
User’s Manual
Auto Ref/Keratometer HRK-7000
---------------------------------------------------------------- Auto Ref/Keratometer HRK-7000
1
Notice
As this product malfunction by the electromagnetic waves originating from mobile
phones, wireless sets, remote-controlled devices, etc, please keep the machine
away from objects which can affect it.
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 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.
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 515P Other end with appliance coupler. For use of equipment in rated voltage less
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Auto Ref/Keratometer HRK-7000 ----------------------------------------------------------------
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 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.
Ver. 1.0
©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.
---------------------------------------------------------------- Auto Ref/Keratometer HRK-7000
3
Contents
1.
2.
Introduction................................................................................................................ 5
1.1.
Overview.......................................................................................................... 5
1.2.
Classification .................................................................................................. 5
Safety Information ..................................................................................................... 6
2.1.
Overview.......................................................................................................... 6
2.2.
Safety Symbol ................................................................................................. 7
2.3.
Environmental Considerations......................................................................... 8
2.4.
Safety Precaution .......................................................................................... 10
3.
Characteristics......................................................................................................... 12
4.
Note for use.............................................................................................................. 13
5.
Names & Functions of Each Part ........................................................................... 14
5.1.
Main Section.................................................................................................. 14
5.2.
Explanation on Switches in Front .................................................................. 17
6.
Intallation of Equipment & Preparion for Measurement ...................................... 18
7.
Excersice with Model Eye ...................................................................................... 20
8.
Measurement............................................................................................................ 24
8.1.
8.2.
Refractometry (REF Mode) ........................................................................... 26
8.1.1.
Manual Measurement Mode ................................................................. 27
8.1.2.
Auto Measurement Mode...................................................................... 34
Keratometry (KER Mode) .............................................................................. 37
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Auto Ref/Keratometer HRK-7000 ----------------------------------------------------------------
8.3.
9.
8.2.1.
Manual Measurement Mode..................................................................37
8.2.2.
Auto Meausurement Mode ....................................................................40
Refractormetry and Keratometry (K&R Mode)...............................................40
8.3.1.
Manual Measureement mode................................................................40
8.3.2.
Automatic Measurement mode..............................................................43
8.3.3.
Diverse Indications ................................................................................44
8.4.
Keratometry Periphery (KER-P).....................................................................48
8.5.
Measurement of Contact Lens Base Curve (CLBC Mode) ............................49
8.6.
Intraocular Lens (IOL) Measurement (IOL Mode) ..........................................51
8.7.
Retro-ILLUM Measurement Mode .................................................................52
8.7.1.
Adjustment of Array and Focus .............................................................52
8.7.2.
Observation on Retro-Illum....................................................................56
8.7.3.
Storage ..................................................................................................57
8.7.4.
Examination on the other eye................................................................57
8.7.5.
Call for Stored Image.............................................................................57
8.7.6.
Return to Measurement Mode...............................................................59
Other Modes .............................................................................................................60
9.1.
Acuity Map, Z-Map Mode ...............................................................................60
9.1.1.
Composition of Window.........................................................................60
9.1.2.
Change of Window ................................................................................62
9.2.
Corneal Radius Measurement Mode .............................................................64
9.3.
DISPLAY Mode ..............................................................................................71
9.4.
User SETUP Mode.........................................................................................69
9.5.
Function for Power Saving ............................................................................77
---------------------------------------------------------------- Auto Ref/Keratometer HRK-7000
5
10. Self Diagnosis & Maintenance................................................................................ 77
10.1.
Before calling for serviceman ........................................................................ 77
10.2.
Replacement ................................................................................................. 80
10.2.1. Printer Paper ......................................................................................... 80
10.2.2. Chin Rest Paper.................................................................................... 81
10.3.
How to Clean Equipment ............................................................................... 82
10.4.
Changing the installation place of the machine ............................................ 82
11. Service Information ................................................................................................. 83
12. Main Specifications ................................................................................................. 84
13. Accessories.............................................................................................................. 89
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Auto Ref/Keratometer HRK-7000 ----------------------------------------------------------------
1.
1.1.
Introduction
Overview
Auto Ref/Keratometer HRK-7000 is the equipment to provide the information of
Spherical, Cylindrical and Axis while measuring the refraction of examinee’s
eyes. Auto Ref/Keratometer HRK-7000 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.
1.2.
Classification
Classification of product: 2
nd
Grade Medical Instrument
Resistance against electric shock: Class I (earthed)
Protection class against electric: Type B
---------------------------------------------------------------- Auto Ref/Keratometer HRK-7000
7
- 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 ----------------------------------------------------------------
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,
maintenance of which is important but hazard related if ignored.
!
or
CAUTION
“Caution” indicates the presence of a hazard that could result in minor
injury, or property damaged if ignored.
---------------------------------------------------------------- Auto Ref/Keratometer HRK-7000
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.
It indicates the hot surface.
It indicates the safe ground point connected to the
chassis of equipment. It is required to do the
protective ground to the conductive section in the
equipment of class I for the purpose of safety.
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Auto Ref/Keratometer HRK-7000 ----------------------------------------------------------------
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 606011, AND CAN/CSA C22.2 NO.601.1
Disposal of your old appliance
1. 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.
2. 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.
3. 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
2.3.
11
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 ----------------------------------------------------------------
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
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 ----------------------------------------------------------------
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.
16.
Do not obstruct any ventilation outlet for proper heat dissipation.
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
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, it can measure by Ø2.0mm at least pupil
radius.
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.
It is possible to check the refractive abnormality through the graph of
Zernike map type.
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-7000 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 ----------------------------------------------------------------
Note for Use
1.
Do not hit or drop the instrument. The instrument may be damaged on 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 to 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 to the machine. So, please
do not use them.
8.
In case of moving HRK-7000, 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
5.
5.1.
17
Names and functions of each part
Main parts
10
[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. Printer button: A button for printing of measuring results.
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Auto Ref/Keratometer HRK-7000 ----------------------------------------------------------------
[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
5. Chin-rest Adjusting Lever: Adjusting the up and down position of Chin-rest.
---------------------------------------------------------------- Auto Ref/Keratometer HRK-7000
19
[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, noises 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 ----------------------------------------------------------------
5 . 2 . Explanation on Switches in Front
①
②
③
④
⑤
⑥
⑦
⑧
⑨
[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. Z-MAP Button: A switch to indicate Zemike Map
4. AUTO Button: A switch to begin to perform the measurement manually or automatically
5. IOL Button: A switch to measure the eyesight of cataract patients or patients
undergone IOL implantation.
6. FUNC Button: ③, ④, ⑤ A switch to change the functions of ③, ④, ⑤ buttons
7. VD Button: To change the VD(Vertex Distance) value. Examp
8. SIZE Button : To measure size of pupil.
9. ILLUM Button: 화면을 정지시켜 각막, 수정체 및 콘택트렌즈의 상태를 확인하는 스위치.
---------------------------------------------------------------- Auto Ref/Keratometer HRK-7000
6.
21
Installation of Equipment & Preparation of Measurement
1. Release of Lock on Stage Section
Unlock the clamping bolt at the lower 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-7000 on the table.
- Insert the power cable into power connector at
the bottom of the main body.
- After checking that the power of the machine 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 left/right
sides of the chin-rest paper.
- Stick the chin-rest paper inserted with the
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
22
Auto Ref/Keratometer HRK-7000 ----------------------------------------------------------------
times.
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
7.
23
Exercise through Model Eye
1. Power On of Main Body
– Connect the power plug appropriately as
shown in the picture.
- Let the power switch on.
- Measuring screen appears as system
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 ----------------------------------------------------------------
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
around the internal array ring.
-Adjust so that the bright dot shall come inside the array ring while watching
the monitor.
- Adjust the focus so that the focus-adjustment circle symbol shall appear
on the bright dot.
1.
Height Adjustment: Adjust it by rotating the operation lever or the chinrest 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 Ref/Keratometer HRK-7000
25
External Array Ring
Internal Array Ringl
[ Figure 10. Adjustment of Measuring Position & Focus ]
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
26
Auto Ref/Keratometer HRK-7000 ----------------------------------------------------------------
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
8.
27
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.
Z-MAP
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 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
28
Auto Ref/Keratometer HRK-7000 ----------------------------------------------------------------
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 11. Relation between each button and measurement mode ]
---------------------------------------------------------------- Auto Ref/Keratometer HRK-7000
8.1.
29
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 12. 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.
30
Auto Ref/Keratometer HRK-7000 ----------------------------------------------------------------
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 9.4).
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 chin-rest. 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
chin-rest 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 13. Eye Height Adjustment ]
---------------------------------------------------------------- Auto Ref/Keratometer HRK-7000
②
31
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 14. Height Adjustment ]
- Focus Adjustment: Adjust it to the bright dot by tilting the operation lever
forward/backward.
32
Auto Ref/Keratometer HRK-7000 ----------------------------------------------------------------
Manual/Auto
Iris
Pupil
External Array Ring
(Min. Radius of Iris Φ
2.0mm)
.
[ Figure 15. REF Manual Mode Screen ]
---------------------------------------------------------------- Auto Ref/Keratometer HRK-7000
33
NOTE
●
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-7000
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.
③
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.
34
Auto Ref/Keratometer HRK-7000 ----------------------------------------------------------------
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.
---------------------------------------------------------------- Auto Ref/Keratometer HRK-7000
35
Pupil Distance(PD)
[ Figure 16. 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
9.4)
- 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.
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.
36
Auto Ref/Keratometer HRK-7000 ----------------------------------------------------------------
[ Figure 17. Example of Print ]
---------------------------------------------------------------- Auto Ref/Keratometer HRK-7000
37
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 18. Screen indicating Auto Measurement Mode]
38
Auto Ref/Keratometer HRK-7000 ----------------------------------------------------------------
③ 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 9.4), 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.
---------------------------------------------------------------- Auto Ref/Keratometer HRK-7000
39
-As the message of TRY AGAIN happens, please refer to the explanation below.
In case of TRY AGAIN
조 치(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
Retro-Illum 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
40
Auto Ref/Keratometer HRK-7000 ----------------------------------------------------------------
8.2.
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. 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.
---------------------------------------------------------------- Auto Ref/Keratometer HRK-7000
41
Iris
Pupil
External Array Ring
(Min. radius of pupilΦ
2.0mm)
[ Figure 19. Screen indicating KER mode ]
42
Auto Ref/Keratometer HRK-7000 ----------------------------------------------------------------
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
[ Figure 20. Example of Print]
---------------------------------------------------------------- Auto Ref/Keratometer HRK-7000
43
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
8.3.
Print the measured result as like in procedure 6 of section 8.1.1
Corneal Curvature / Refractive Power
(K&R Mode)
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.
Manual Measurement Mode
①
Perform the adjustment of array and focus as like in procedure 1, 2 of
44
Auto Ref/Keratometer HRK-7000 ----------------------------------------------------------------
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.
Iris
Pupil
Array Ring
Mire Image
[ Figure 21. Screen
indicating
Mode ]
K&R
---------------------------------------------------------------- Auto Ref/Keratometer HRK-7000
45
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.
[Figure 22. Example
of Print ]
46
Auto Ref/Keratometer HRK-7000 ----------------------------------------------------------------
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.
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
47
Diverse Indications
Measurement
of Refraction
Kind
Name
#
Indicating
low
reliability
+
OUT
OUT
C
OUT
Measurement
of Curvature
Exceeding
measurabl
e range
Exceeding
measurabl
e range
Exceeding
measurabl
e range
#
Indicating
low
reliability
+
OUT
Exceeding
measurabl
e range
OUT
Exceeding
measurabl
e range
C
OUT
Exceeding
measurabl
e 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
astigmati
sm
exceeds
15.73D
Measures
Measure
again
Impossible
to
measure
Measure
again
Impossible
to
measure
48
Auto Ref/Keratometer HRK-7000 ----------------------------------------------------------------
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
49
[ Figure 23. Screen indicating KER-P mode ]
In case of corneal center,
-
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
④ Measurement of part around cornea
The direction of part around cornea which is measure at present is to be
50
Auto Ref/Keratometer HRK-7000 ----------------------------------------------------------------
indicated 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
-
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
⑤ 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
-
RM : Average curvature in periphery
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 re-measurement
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
[ Figure 24. Screen indicating KER-P Mode ]
51
52
Auto Ref/Keratometer HRK-7000 ----------------------------------------------------------------
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.
[ Figure 25. Adhesion of Contact Lens ]
4. Sticking of Model Eye
- Fix the model eye stuck with contact lens with pushing pin after taking the
chin-rest
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 26. 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
53
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 27. Screen indicating CLBC Mode ]
7. Print
- Press Print button.
54
Auto Ref/Keratometer HRK-7000 ----------------------------------------------------------------
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
8.7.
55
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.
Adjustment of Array and Focus
① 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.
56
Auto Ref/Keratometer HRK-7000 ----------------------------------------------------------------
[ Figure 28. 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 RetIllum 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
---------------------------------------------------------------- Auto Ref/Keratometer HRK-7000
57
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.
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
Ret-Illum image on the screen at the same time.
58
Auto Ref/Keratometer HRK-7000 ----------------------------------------------------------------
[ Figure 29. 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.
It is the button to decrease the intensity of Ref LED for one (1) level.
---------------------------------------------------------------- Auto Ref/Keratometer HRK-7000
59
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.
Observation on Retro-Illum
① 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
button.
② 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
- 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
60
Auto Ref/Keratometer HRK-7000 ----------------------------------------------------------------
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.
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.
Examination on the other eye
Perform the examination on the other eye and the storage of its image by the
same way.
Call for Stored Image
---------------------------------------------------------------- Auto Ref/Keratometer HRK-7000
61
[ Figure 30. 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.
62
Auto Ref/Keratometer HRK-7000 ----------------------------------------------------------------
[ Figure 31. Window indicating stored image(enlarged) ]
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
9.
9.1.
63
Other Modes
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.
Composition of Window
[ Figure 32. Z-Map Window(Aberration) ]
64
Auto Ref/Keratometer HRK-7000 ----------------------------------------------------------------
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 33. Z-Map Window(Low Graph) ]
As pushing
button, it is changed to the graph which is to be seen as a
---------------------------------------------------------------- Auto Ref/Keratometer HRK-7000
65
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)
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 34. Z-Map Window Change ]
66
Auto Ref/Keratometer HRK-7000 ----------------------------------------------------------------
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 35. Z-Map Window ]
---------------------------------------------------------------- Auto Ref/Keratometer HRK-7000
9.2.
67
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 36. Window indicating Size Mode]
68
Auto Ref/Keratometer HRK-7000 ----------------------------------------------------------------
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 ⇒ button in the center is to adjust the movement of left bar,
and ⇒ button and ⇐ 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
69
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 37. 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.
70
Auto Ref/Keratometer HRK-7000 ----------------------------------------------------------------
Measured value
Measured value
Average
[Figure 38.
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
9.3.
71
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
- 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 39. Measured Result of Refractory ]
72
Auto Ref/Keratometer HRK-7000 ----------------------------------------------------------------
3. Measured Result of Keratometry
- 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 40. Measured Result of Keratometry ]
9.4.
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
73
[ Figure 41. 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.
74
Auto Ref/Keratometer HRK-7000 ----------------------------------------------------------------
[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
mm
Indication Type of Corneal Measurement
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
2.
75
Serial number, Date & Time, Type of Output
[ Figure 42. 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
You can select “ON” or ”OFF” of AUTO START MODE.
[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.
76
Auto Ref/Keratometer HRK-7000 ----------------------------------------------------------------
COMMUNICATION : Setup for communication to other machines
[BPS]
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 43. 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
---------------------------------------------------------------- Auto Ref/Keratometer HRK-7000
DMY
[SET]
77
: Date/Month/Year
After selecting item by pushing ⇐ button or ⇒ button, you can
change the value by using ⇑ button or ⇓ button.
PRINT
Print Setup
[A-PRT] 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.
78
Auto Ref/Keratometer HRK-7000 ----------------------------------------------------------------
OFF : It is not to be printed.
[ Figure 44. 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
---------------------------------------------------------------- Auto Ref/Keratometer HRK-7000
79
again, input them by using SEL button while selecting
characters pushing b
button or
button.
[ Figure 45. Character Input ]
ETC
Other Setup
[LANG]
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
80
Auto Ref/Keratometer HRK-7000 ----------------------------------------------------------------
9.5.
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.
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
Method of settlement
Motor Error
Re-input the power in 10
seconds after switching it
EEPROM Error
Internal abnormality for
off.
In
case
that
the
EEPROM Data Error
the equipment
message
System Error
is
indicated
again, contact our sales
representative.
Clock Error
Abnormality
in
the
Please contact our sales
INVALID SETUP DATA –
internal
data
for
representative.
REF
Refractometry
---------------------------------------------------------------- Auto Ref/Keratometer HRK-7000
Abnormality
in
81
the
Please contact the selling
INVALID SETUP DATA internal
data
for
agent.
KER
Keratometry
② Messages during measurement
Message
Cause
Refer to page 15
TRY AGAIN
Method of Settlement
Refer to page 15
Objective glass in the measurement
Clean the glass
window is polluted
Sphere of examinee’s eye exceeds
+22D
Curvature radius of examinee’s eye
Impossible
to
measure
+ OUT
exceeds 10.2mm
Object lens within measurement
Clean the glass
window is polluted
Sphere of examinee’s eye exceeds
-22D
Curvature radius of examinee’s eye
Impossible
measure
- OUT
is less than 5.0mm
Objective glass in measurement
Clean the glass
window is polluted
to
82
Auto Ref/Keratometer HRK-7000 ----------------------------------------------------------------
Astigmatism
of
examinee’s
eye
Impossible
exceeds 10D
Corneal astigmatism of examinee’s
to
measure
C OUT
eye exceed 15D
Object lens within measurement
Clean the glass
window is polluted
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
83
10.2. Replacement
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 46.
Opening cover ]
[ Figure 47.
Changing paper ]
[ Figure 48.
Fixing paper ]
[ Figure 49.
Closing cover ]
84
Auto Ref/Keratometer HRK-7000 ----------------------------------------------------------------
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 CR-7000 with two arm carefully.
② Remove the Power cord
④
Pick the fuse holder out from the Power inlet
⑤
Exchange the fuses
⑥
Insert the fuse folder
!
INFORMATION
Use 250V, T3.15AL fuse for the Auto Ref/Keratometer HRK-7000.
---------------------------------------------------------------- Auto Ref/Keratometer HRK-7000
85
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.
10.3. 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
y
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.
86
Auto Ref/Keratometer HRK-7000 ----------------------------------------------------------------
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.
-
Name of Equipment Type : HRK-7000
-
Typical No. of Equipment : Typical number consisted of 8 digits and
-
Explanation on its symptom : Description in details
characters written on its name plate
Supply of parts required for repair:
-
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 :
-
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.
-
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
87
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
Axis
0.0 ~ -15.00D
(Increments: 0.05/0.12/0.25D)
1 ~ 180˚ (1˚ Unit)
is
1.3375,
88
Auto Ref/Keratometer HRK-7000 ----------------------------------------------------------------
Corneal diameter
2.0 ~ 14.0mm (0.1mm Unit)
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
89
13. Accessories
[ Figure 50. 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
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