Right Righton Speedy-K Instructions Manual

D023-6E
December.2008(1/2)
Thank you for purchasing this Righton product.
This instruction manual is written for users of the Righton “Auto Refract-keratometer Speedy-K.”
To ensure correct usage read this manual carefully before operating the instrument.
• It is prohibited to alter this manual in part or whole without expressed permission.
• The contents of this manual are subject to change without any notice.
• Although every effort has been made to ensure the accuracy of this manual, if you note any points that are
unclear or incorrect, contact your nearest Righton representative.
• Note that despite the above, Righton does not bear any responsibility for any claim over loss due to the use of
this instrument.
Caution Symbol in This Manual
Though Righton products are designed to provide you utmost safety during use, incorrect usage or disregard
of the instructions can cause personal injury or property damage. For your safety, read the instruction
manual carefully and thoroughly before usage. Do not discard this manual but keep it near the product for
easy reference.
Inside this instruction manual, safety instructions are indicated with the symbol shown below. Be sure to
follow the instructions marked with this symbol for your safety.
Symbol
Meaning
CAUTION
Disregarding instructions marked with this symbol may lead to injury or property
damage.
Meaning of Symbol on the Instrumentʼs Cover and Nameplate
AC power
OFF (cut off from power supply)
Fuse
ON (connected to power supply)
Caution: Please refer to instruction manual.
Input and Output
Type B equipment
Symbol for separate collection in European countries
Products bearing this symbol must be collected separately. The
following rule is applicable only to users in European countries.
This product is designated as an item to be collected
separately at an appropriate spot. Do not dispose of it as
household waste.
For further information, contact the retailer or the local authorities
responsible for waste management.
1
Please Read This First for Your Safety.
CAUTION
1
Intended Use
Only use the Auto Refract-keratometer Speedy-K for measuring the refractive power of the
eye and curvature of the cornea.
Do not use this instrument for any other purpose.
CAUTION
2
Do Not Disassemble
Disassembling this instrument may lead to electric shock and/or malfunction of the instrument.
Never disassemble this instrument.
CAUTION
3
During Measurement Operations
• Particularly in the case of little children, take care that patients do not put their fingers in
the moving parts of this instrument.
• Take care that the measuring head does not strike the patient’s nose. (When moving the
measuring head toward the patient or toward the patient’s left or right eye.)
2
CAUTION
4
During Installation and Transportation
Be absolutely sure to support the instrument as shown in the figure at left during transportation.
Do not carry the instrument by the forehead rest, measuring head or joystick lever.
• Recommended operational conditions are an air pressure of 800 to 1060 hPa, a temperature
•
of approximately 10C to 35C, and a relative humidity of 30 to 70%.
The environmental requirements for transport and storage are -40℃ to +70℃ in temperature
and 10% to 95% in humidity.
• Although the instrument is dust-proof, do not use it in a room where there is a lot of dust or dirt.
• The best place for installation is a dimly lit room. Do not face the patient side of the
•
instrument toward a bright window or source of light.
Although this instrument conforms to EMC standards (IEC60601-1-2:2001), it does emit
a weak electromagnetic signal. If use of this instrument affects other equipment such as
televisions or radios, separate it from the affected devices or change the direction it faces.
When transporting this instrument, always be sure to first tighten its securing screws. ( P.8)
•
• Since this instrument is not water-proof in construction, never take it into locations where
•
CAUTION
5
liquids such as rain or beverages may get inside.
If condensation (dew) forms, do not use the instrument until the condensation disappears.
Other Notes on Handling
• Always use a specified power cord that is rated for the voltage used in your area and that
has been approved under local safety standards.
Using the wrong power cord could result in damage or fire.
For 100 V – 120 V area : UL listed, detachable cord set, 3 conductor grounding type SVT,
For 230 V area :
No. 18 AWG rated at 125 V, 7 A minimum.
3-pole power supply cord set, which must be approved according
to EU/EN standards.
• Do not scratch, break or alter the power cord or overly bend, pull, twist or bundle it. Also,
placing heavy objects on the power cord or subjecting it to heat may cause it to break,
resulting in fire or electric shock. If the power cord becomes damaged, be sure to replace
it with a new cord.
3
• If there is any dust on the power plug blades or the surface they connect to, pull out the
power plug and remove the dust. The dust or grime can make the power plug and AC
power outlet to be out of contact and may result in fire.
• This refractometer is a precision optical instrument containing many electronic components.
Be sure to handle it carefully and do not subject it to strong physical shock.
CAUTION
6
Maintenance and Storage
• The specified transportation and storage environment is a temperature of –10°C to 45°C
and relative humidity of 20 to 85%.
• When replacing a fuse, be sure to turn off the power switch and pull out the power cord.
Be sure to use only a fuse of the specified rating. Electric shock or fire may occur if a fuse
other than of the specified rating is used. (Specified fuse: time lag fuse T1AL/250V,
SCHURTER 0034.3117) (→ P.45)
• Measurement results are adversely affected if
the measuring window glass surface becomes
soiled with grease from the patient’s nose,
fingerprints or dust. Be sure to always keep
the measurement window glass clean.
When cleaning the measurement window glass, take care not to scratch or break it. (→ P.37)
• When finished using the instrument, turn off
the power switch and cover it with its plastic
cover.
OFF
• The internal battery
The instrument includes a primary lithium battery as the power source for the clock function
and all setting functions stored in memory. If the battery goes out, the time and date
printed on the measurement printout will be wrong. Also, settings will not be stored in
memory and default settings will be restored every time the power is turned off. Contact
your nearest Righton representative when replacing batteries.
• Disposing of the unit
If you dispose of the unit, be sure to follow the local regulations regarding the disposal of
products containing lithium batteries.
■ Equipment Supplied ■
Main unit, power cord, plastic cover, blower, spare fuse, transport securing screw hole caps (2),
handy clamp screw, printer paper (5 rolls), model eye for inspection, Philips screwdriver, and
instruction manual (this booklet)
4
Contents
■ Caution Symbol Used in this Manual ...................................................................................... 1
■ Symbols on the Instrument’s Cover and Nameplate ............................................................. 1
■ Please Read This First For Your Safety .................................................................................. 2
■ Equipment Supplied .................................................................................................................. 4
Nomenclature ......................................................................................................................... 6
Preparation ............................................................................................................................. 8
2-1
Setting Up the Speedy-K ................................................................................................ 8
2-2
Measuring the Model Eye ............................................................................................. 10
2-3
Checking Settings ......................................................................................................... 11
Measurement Method .......................................................................................................... 12
■ Measurement Screen ....................................................................................................... 12
■ Description of Test to Patient Before Measuring ............................................................. 13
■ Measurement Modes and R–K Modes of the Unit ........................................................... 13
3-1
Auto Measurement Mode .............................................................................................. 15
3-2
Continuous Measurement Mode ................................................................................... 18
3-3
Manual Measurement Mode ......................................................................................... 19
3-4
Quick Measurement Mode ............................................................................................ 20
3-5
Printing .......................................................................................................................... 21
3-6
Miscellaneous ............................................................................................................... 24
Automatic Fogging / IOL Patients / When Keratometry Measurement is Impossible /
Measuring a Hard Contact Lens Base Curve / Error Messages / Representative Values for
Refraction and Keratometry Measurements / Refraction Confidence Values / Storing
Measured Values / Automatic Power Conservation
Retro Mode ............................................................................................................................ 28
Making Various Settings (Setup) ........................................................................................ 29
Connecting to External Devices ......................................................................................... 43
Maintenance .......................................................................................................................... 44
7-1
Checking Measurement Accuracy ................................................................................ 44
7-2
Replacing a Printer Paper Roll ..................................................................................... 44
7-3
Changing the Fuses ...................................................................................................... 45
7-4
Cleaning the Chin and Forehead Rests ....................................................................... 46
7-5
Cleaning the Measurement Window ............................................................................. 46
7-6
Cleaning the Model Eye ................................................................................................ 46
7-7
Cleaning the Painted Components ............................................................................... 46
Troubleshooting ................................................................................................................... 47
Specifications ....................................................................................................................... 48
5
Nomenclature
Infrared signal generator
Sends a signal to an Auto
Optester “Remote Vision”.
Measuring head
Houses the measuring
mechanism.
TV monitor
Enables the operator to take
measurements while monitoring
the patient’s eye on the TV
monitor. Measurement data is
also displayed on the monitor.
FUNCTION keys
Press to enter various setup
modes and retro mode.
SET key
Press to enter a given setup
screen.
POWER lamp
Lights when the power
switch is set to ON.
PRINT key
Press to print out data.
Printouts are made
automatically in auto
measurement mode. (→ P.21)
Measurement switch
Press to start measurements.
It is not necessary to press this
switch in auto measurement
mode or continuous
measurement mode.
Joystick lever
Used for right/left and forward/
backward positioning during
measurement.
Printer cover
Open in the following cases:
• To change the printer paper
roll
• To adjust the TV monitor’s
brightness or contrast.
6
Transport securing
screw hole
A securing screw can be
tightened to protect
equipment from vibration
and shock during transport.
Remove this screw after
installing this instrument
and store it in the storage
compartment (2). Re-tighten
the screw whenever moving
the equipment. (→ P.8)
The handy clamp screw is
screwed into this screw
hole. (→ P.9)
Fuse holder
Contains the fuse.
(→ P.45)
RS-232C interface
connector
Used when connecting to
external devices. (→ P.43)
Input power cord
Connect to an AC
power outlet.
Input power cord socket
Plug the power cord into
this socket.
Power switch
Power is ON when “ ” side
is pressed and OFF when
“ ” side is pressed.
1. Nomenclature
Model eye
mounting holes
Insert the model eye’s
pins into these holes.
Forehead rest
The patient’s forehead rests
against these pads.
Measuring window
Height mark
Show the target in this
window to the patient.
Chin rest
Place the patient’s chin here.
Chin rest paper can also be
used for cleanliness. (→ P.8)
Height guide ring
Adjust the height of the
patient’s eyes to these
rings. (→ P.15)
Chin rest height
adjustment knob
Turn to move the chin rest up
or down. (→ P.15)
Sliding seat
Transport securing
screw hole
A securing screw is tightened
to protect equipment from
vibration and shock during
transport. Remove this screw
after installing this instrument
and store it in the storage
compartment (1). Re-tighten
the screw whenever moving
the equipment. (→ P.8)
Target line
for sliding seat
(→ P.15)
Video signal output
connector
Used when connecting to an
external video equipment.
Storage for transport
securing screws (1, 2)
Brightness control knob
Turn to adjust the brightness
of the TV monitor screen.
Contrast control knob
Printer paper
Turn to adjust the contrast of
the TV monitor screen.
(When the printer’s cover is opened)
7
Preparation
2 - 1
Setting Up the Speedy-K
1
Place the unit on a stable table (such as a power table).
2
Remove the two transport securing screws using the Philips screwdriver.
Cover the screw holes with the caps provided.
Store the two securing screws in the storage compartment to the left of the printer. (→ P.7)
Always be sure to tighten the securing screws when transporting the unit.
3
Plug the input power cord into the unit’s input power cord socket.
4
Plug the other end of the input power cord into an AC power outlet.
5
Turn the unit’s power switch ON. The POWER lamp will light, the TV monitor screen will brighten,
and the unit can now make measurements.
6
Insert a printer paper roll. (→ P.44)
7
Clean the forehead rests and chin rest with disinfectant alcohol.
When using chin rest paper (sold separately), pull up the two chin rest pins and hook the chin rest
paper between them. Use of a thickness of about 5 mm of chin rest paper is appropriate.
8
2. Preparation
■ Using the handy clamp screw
When setting the instrument on the adjustable table (such as the double table), clamp the right, left,
fore and backward movement of the sliding seat by screwing in the handy clamp screw.
Remove the provided cap of the transport securing screw hole from the instrument. Screw in the
handy clamp screw holding the knurled part, till the screw cannot be turned further.
To clamp the right, left, fore and backward movement:
Push in the top of the screw and turn right.
To release the clamp:
Turn left till the top of the screw pops up.
Handy clamp screw
9
2 - 2
Measuring the Model Eye
1
Insert the model eye’s two pins into the model eye mounting
holes in the forehead rest part.
2
Check the VD value on the TV monitor.
(120V: 13.75, 230V: 12.0)
3
Using the joystick lever, align the target with the model eye.
(For details on the measurement method, refer to P.12 to 27.)
4
Compare the measured values for the model eye with the values (SPH, CYL and R) listed on the label
attached to the model eye and check that the difference in values all fall within the following
corresponding ranges.
SPH : ±0.25D
CYL : ±0.25D
R1
: ±0.02mm
R2
: ±0.02mm
T
: ±0.05mm
N
: ±0.05mm
S
: ±0.05mm
I
: ±0.05mm
If either value is not within the above range, refer to “3 Measurement Method” (P.12 to 27) and check
that the measurement method is correct and then re-measure.
Next, refer to “7-5 Cleaning the Measurement Window” and “7-6 Cleaning the Model Eye” (P.46)
under “7 Maintenance” and clean these parts if they are dirty. If either value still is not within the
above range, please contact your nearest Righton representative.
10
2. Preparation
2 - 3
Checking Settings
Factory settings are as follows.
For details on the meaning of settings or on how to change settings, refer to “5 Making Various Settings
(Setup)” (P.29 to 42).
Measurement mode setting
AUTO
Fixation chart brightness setting
H
Patient No. setting
00001
PRINT setting: AUTO PRINT
ON
PRINT setting: REF PRINT
ALL
PRINT setting: KERATO PRINT
REP
PRINT setting: MESSAGE
OFF
R–K ORDER setting
120V: RK, R, K, RKP, KP KEEP ON
230V: RK, RKP, R, K, KP KEEP ON
REF setting: CYL (astigmatism sign)
– (Minus)
REF setting: STEP (minimum unit)
AUTO
REF setting: FRAME VD
120V: 13.75
230V: 12.00
KER setting: mm/D (unit of measure)
mm
KER setting: INDEX
1.3375
KER setting: KERATO TRANS (transmission setting)
OFF
Buzzer setting: SOUND
ON
Date display format
120V: MDY
230V: DMY
Time display format
120V: AM/PM
230V: 24H
Print message
Blank
RV IR ID setting
OFF
RS-232C setting
OFF
Word setting
EG
11
Measurement Method
Measurement Screen
The figure below is an example of a screen during measurement in RKP Mode.
Cornea radius curvature
(NASAL)
Cornea radius curvature
(SUPERIOR)
Cornea radius curvature
(TEMPORAL)
Cornea radius curvature
(INFERIOR)
Cornea radius curvature
(flattest meridian)
T 9.12
N 9.12
S 9.12
R1 axis angle
R1 9.12
A1 180
R2 9.12
R2 axis angle
Auto fogging mark
I
9.12
A2 90
R 05 / L 05
RKP
Cornea radius curvature
(steepest meridian)
Left/right keratometry
measurement count
Mire ring
R–K mode
Light spot
Left/right refraction
measurement count
Alignment mark
VD setting value/
PD value
Keratometry
measuring light
R 08 / L 08
VD 12.0 / PD64
R 00001
S – 12.00 C – 6.00 A180
A
H
Fixation chart brightness
Left/right eye display
Mark indicating
measuring underway
R–K
Patient No.
/1
RETRO /2
VD
/3
A-C-M
QUICK /4
Measurement mode
A
C
M
Q
Auto measurement mode
Continuous measurement mode
Manual measurement mode
Quick measurement mode
S : Spherical power
C : Cylindrical power
A : Cylindrical axis
SET
SET key
POWER
PRINT key
PRINT
FUNCTION keys
R–K /1
Switches R–K mode
RK → RKP → R → K → KP → RK... (→ P.14, 34 – 35)
RETRO/2 Enters retro mode (→ P.28)
V D /3
A-C-M
QUICK /4
12
Changes fixation chart brightness (press a short time) H → L → H...
Changes the VD value (press a long time) 12.0/13.75 → 0.0 → 12.0/13.75...
Switches the measurement mode
(→ P.14 – 20)
Auto → Continuous → Manual → Quick → Auto...
3. Measurement Method
Description of Test to Patient Before Measuring
Most patients will be rather nervous, so try to put them at ease. Briefly explain the unit’s operation and purpose to the
patient.
• “This machine determines the power of the spectacle lenses you should use.”
• “You will see a green field inside. Please relax and look at the tree target in the center.”
• “Try to keep your eye as still as possible.”
Measurement Modes and R–K Modes of the Unit
This unit possesses four measurement modes and five R–K modes.
Select the measurement mode and R–K mode according to the description given in “5-1. Measurement Mode Screens”
(→ P.30) under “5. Making Various Settings (Setup)”.
The table on the next page gives the operation performed when each mode is selected.
13
R–K Mode
RK Mode
R Mode
K Mode
KP Mode
RKP Mode
Measurement Mode
Auto start
Auto measurement mode
Auto start
↓
↓
(→ P.15)
Refraction
Keratometry
Measurements are made
measurement
measurement
automatically with the unit
(5 measurements
(One measurement/
determining all operations from the
min.)
center)
beginning to the end. When the
↓
↓
light spot enters the alignment
Auto stop
Refraction
↓
mark, the measurement starts. The
measurement
Auto print
unit determines the cause of
(5 measurements min.)
(Only when AUTO
fluctuations in the measured values
↓
PRINT is ON)
and the measurement ends. If
Auto stop
AUTO PRINT is ON, a printout is
↓
made, when measurements for the
Auto print
(Only when AUTO
left and right eyes are completed.
Auto start
Auto start
↓
↓
Keratometry
Keratometry
measurement
measurement
(One measurement/ (One measurement/
center)
center and
periphery)
↓
↓
Auto stop
Auto stop
↓
↓
Auto print
(Only when AUTO
Auto print
PRINT is ON)
(Only when AUTO
PRINT is ON)
PRINT is ON)
Continuous measurement mode
Auto start
↓
(→ P.18)
The following set is
Although measurements are
started automatically in the same performed continuously:
way as auto measurement mode,
Keratometry
measurements do not end
measurement
automatically but are made
(One measurement/
center)
continuously. Pressing the
↓
measurement switch will stop
Refraction
measurement momentarily.
measurement
Pressing it again will restart
(5 measurements)
measurement. Press the PRINT
key to print out measured data.
Manual measurement mode
(→ P.19)
Measurement is not performed
until the tester presses the
measurement switch. When the
light spot enters the alignment
mark and the image comes into
focus, press the measurement
switch and the unit will take one
measurement. Holding the switch
down will continue taking
measurements. Press the PRINT
key to print out measured data.
Quick measurement mode
(→ P.20)
This is the same as continuous
measurement mode except that
refraction measurements take
about half the time. The length of
time required for keratometry
measurement does not change in
this mode.
14
Measurement
switch ON
↓
Keratometry
measurement
(One measurement/
center)
↓
Refraction
measurement
(One measurement)
When the measurement
switch is held down, this
is the same as continuous
measurement mode.
Auto start
↓
The following set is
performed continuously:
Keratometry
measurement
(One measurement
/center)
↓
Quick refraction
measurement
(5 measurements)
Auto start
↓
Refraction
measurement
(Continuous
measurements)
Auto start
Auto start
Auto start
↓
↓
↓
The following set is
Keratometry
Keratometry
performed continuously:
measurement
measurement
(One measurement/ (One measurement/
Keratometry
center)
center and
measurement
periphery)
(One measurement/
center and periphery)
↓
Refraction
measurement
(5 measurements)
Measurement
switch ON
↓
Refraction
measurement
(One measurement)
Measurement
Measurement
switch ON
switch ON
↓
↓
Keratometry
Keratometry
measurement
measurement
(One measurement/ (One measurement/
center)
center and
periphery)
When the measurement switch is held
down, this is the
same as continuous
measurement mode.
When the measurement switch is held
down, this is the
same as continuous
measurement mode.
Auto start
↓
Refraction quick
measurement
(Continuous
measurements)
Auto start
↓
Keratometry
measurement
(One measurement/
center and periphery)
↓
Refraction
measurement
(5 measurements min.)
↓
Auto stop
↓
Auto print
(Only when AUTO
PRINT is ON)
When the measurement switch is held
down, this is the
same as continuous
measurement mode.
Measurement
switch ON
↓
Keratometry
measurement
(One measurement/
center and periphery)
↓
Refraction
measurement
(One measurement)
When the measurement
switch is held down, this
is the same as continuous
measurement mode.
Auto start
Auto start
Auto start
↓
↓
↓
The following set is
Keratometry
Keratometry
performed continuously:
measurement
measurement
(One measurement/ (One measurement/
Keratometry
center)
center and
measurement
periphery)
(One measurement/
center and periphery)
↓
Quick refraction
measurement
(5 measurements)
3. Measurement Method
3 - 1
Auto Measurement Mode
1
2
A-C-M
Press QUICK
/4 and set the measurement mode to A .
Press R–K /1 and select the R–K mode. The following
description is for when the R–K mode selected is RK . The
measurements made (refraction measurement, keratometry
center measurement, keratometry peripheral measurement)
differ for each R–K mode. For details on the measurements
made in each R–K mode, see the previous page.
3
Show the patient where to sit. Ask the patient to rest both
hands on the lap.
Adjust the height of the table or chair so the patient is comfortable.
4
Turn the chin rest height adjustment knob, and align the patient’s eyes with the height guide ring.
5
Fit the patient's forehead to the forehead rest and rest the patient’s chin firmly on the chin rest.
d If the chin is not firmly in place, accurate measurement is not possible.
6
Move the joystick lever to position the measuring head so that
the patient’s eye is displayed on the screen. Once the patient’s
The following operations allow
you to find the patient’s eye
easily
eye first appears on the screen, bring the image of the pupil to
the center of the screen. (You may measure either eye first).
For vertical direction:
Align the head height mark
with the height guide ring
located on the chin rest bar.
Turn: Moves vertically.
Tilt to left/right:
Moves to left/right.
Tilt to back/forth:
Moves to back/forth.
Movement of the joystick lever
and the measuring head motion
For lateral direction:
Align the edge of the sliding
seat with the target line on
the base.
15
7
Before putting the light spot inside the alignment mark, move the joystick lever back and forth to
focus the mire ring.
Keratometry
measuring lights
R1
A1
R2
A2
R 00 / L 00
RK
Alignment mark
Pupil image
Mire ring
R 00 / L 00
VD 12.0 / PD
A
A
H
R 00001
S
8
C
Once the mire ring is in focus, move the joystick to fine adjust the vertical and horizontal position to
align the light spot with the center of the mire ring.
R1
A1
R2
Light spot
A2
R 00 / L 00
RK
Mire ring
Pupil image
R 00 / L 00
VD 12.0 / PD
A
A
H
R 00001
S
9
Alignment mark
C
When the light spot enters the alignment mark, a “
” mark will appear indicating that Auto Fogging
is activated.
If the light spot and mire ring are not clearly in focus, fine adjust by moving the joystick back and
forth to achieve focus of the light spot and mire ring.
R1
A1
R2
Light spot
A2
R 00 / L 00
RK
Auto fogging mark
Alignment mark
H
R 00001
S
C
R 00 / L 00
VD 12.0 / PD
A
A
CAUTION Be careful not to bump the measuring head against the patient’s nose when moving
the unit left or right. (It is safe to move the unit left or right after first pulling it
forward.)
16
3. Measurement Method
10 When the “
” disappears, measurement will start automatically.
The unit will determine the cause of fluctuations in the measured values and will automatically end
the measurement when measured values stabilize. The display on the TV monitor will be as in the
figure below. (The figure is an example after the right eye has been measured.)
If you want to re-measure the right eye, press the measurement switch again at this point.
R1 9.12
A1 180
R2 9.12
R OK
H
R 00001
S – 3.25
C – 0.62
A2 90
R 01 / L 00
RK
R 05 / L 00
VD 12.0 / PD
A
A159
11 Move the unit left or right and perform steps 6 through 10 for measuring the other eye. If the AUTO
PRINT setting is ON, the unit will automatically print out the measurement results once the
measurement is finished. (→ P.21)
(The figure is an example of the TV screen during printing.)
KR R1 7.80
L R1 9.12
R
L
A1 154
A1 180
R2 7.63 A2 64
R2 9.12 A2 90
R 05 / L 05
RK
PRINTING
001/PD64
– 3.25 – 0.62
– 2.00 – 0.50
159 10
44 10
Keratometry
measurement value
PD values, representative
refraction values for the
left and right eyes and the
confidence values
■ After both eyes have been measured, the patient’s PD value (pupil distance in mm) will be calculated.
You may not obtain an accurate PD value in the following cases.
• The patient’s head moved during measurement.
• The binocular function of the patient is not good.
■ If there is any foreign matter (such as opacity in the crystalline lens caused by cataract, other opacity
or scratches) obstructing the light from entering the pupil during measurement, it will appear as a
black shadow. If there are any black shadows, observe the pupil in retro illumination mode (→ P.28)
and proceed to further examination of the eye using the slit lamp.
17
3 - 2
Continuous Measurement Mode
2
A-C-M
Press QUICK
/4 and set the measurement mode to C .
Press R–K /1 and select the R–K mode.
3
Measure the patient’s eyes using the same steps 3 through 10 as given in “3-1 Auto Measurement
1
Mode”.
d In this mode, measurement does not end automatically, rather it is continuous.
d Be sure to measure each eye at least five times.
Increase the number of measurements even more if there are fluctuations in the measured values
or lots of eye movement.
Up to eight refraction and keratometry measurement results can be stored per eye.
4
Press the measurement switch when you want to end measurement for a given eye.
(The alignment mark will blink and measurement will stop temporarily.)
18
5
Measure the other eye in the same way.
6
Press the
PRINT
key when you want to print out the measurement results. (→ P.21)
3. Measurement Method
3 - 3
Manual Measurement Mode
2
A-C-M
Press QUICK
/4 and set the measurement mode to M .
Press R–K /1 and select the R–K mode.
3
Position the measuring head versus the patient’s eye using the same steps 3 through 8 as given in
1
“3-1. Auto Measurement Mode”.
d In this mode, Auto Fogging does not activate even when the light spot enters the alignment mark.
4
If the light spot and mire ring are not clearly in focus, fine adjust by moving the joystick back and
forth to achieve focus of the light spot and mire ring.
At this time, the fixation chart will automatically move slightly away from the far point of the patient’s
eye and an OK mark (→ OK ←) will appear.
R1
A1
R2
OK
H
R 00001
S
5
C
A2
R 00 / L 00
RK
R 00 / L 00
VD 12.0 / PD
A
M
OK mark
Press the measurement switch when the OK mark (→ OK ←) appears.
Auto Fogging will activate at this point and the patient’s eye will be measured.
d Be sure to take refraction measurements for each eye at least five times. Continuous measurement
is possible by holding down the measurement switch.
Up to eight refraction and keratometry measurement results can be stored per eye.
6
Measure the other eye in the same way.
7
Press the
PRINT
key when you want to print out the measurement results. (→ P.21)
19
3 - 4
Quick Measurement Mode
Quick Measurement Mode with shortened refraction measurement times is useful such as when
measurement is difficult due to quick motion of the eye in the case of an infant or nystagmus.
d Although the refraction measurement time in this mode is reduced to about half of the usual time,
fluctuations in measured values may increase greatly.
d The length of time required for keratometry measurement does not change in Quick Mode.
d Do not use this mode under normal conditions.
d A “Q” is printed on the print paper to indicate Quick Measurement Mode.
R1
A1
R2
H
R 00001
S
1
2
C
A2
R 00 / L 00
RK
R 00 / L 00
VD 12.0 / PD
A
Q
A-C-M
Press QUICK
/4 and set the measurement mode to Q .
Press R–K /1 and select the R–K mode. (Keratometry measurement is not available in Quick
Measurement Mode.)
3
Position the measuring head versus the patient’s eye using the same steps 3 through 10 as given in
“3-1. Auto Measurement Mode”.
d In this mode, measurement does not stop automatically. Measurement is continuous.
d Be sure to take quick refraction measurements for each eye at least five times.
Increase the number of measurements even more if there are fluctuations in the refraction
measurement values or lots of eye movement. Up to eight refraction and keratometry measurement
results can be stored per eye.
4
Press the measurement switch to end measurements for a given eye.
(The alignment mark will blink and measurement will stop temporarily.)
20
5
Measure the other eye in the same way.
6
Press the
PRINT
key when you want to print out the measurement results. (→ P.21)
3. Measurement Method
3 - 5
Printing
1
In Auto Measurement Mode, if the AUTO PRINT setting is set to ON, measurement results are
printed automatically after measurements are completed.
In Continuous or Manual Measurement Mode, or when the AUTO PRINT setting is set to OFF, press
the
PRINT
key to obtain a printout.
Communications with external devices conform to the communications settings made. (→ P.43)
Data is printed according to user settings. (→ P.33)
d The unit prints out only the measured results for the last eight measurement cycles for both
refraction and keratometry measurements of each eye. (Five cycles for each eye in Auto
Measurement Mode.)
d Measurement cannot be performed during printout.
d If Auto Print is set to OFF, a screen like that shown below will appear after both eyes have been
measured. (Example during Auto Measurement)
R1 9.12
A1 180
R2 9.12
RL
H
R 00001
S – 3.25
2
OK
A2 90
R 01 / L 00
RK
R 05 / L 06
VD 12.0 / PD
A
C – 0.62
A159
The printed paper will come out of the unit. Tear off the paper by pulling upward.
21
Example of Printed Data
Patient’s No.
Cornea vertex
distance
Pupil distance
Measured
refraction
values
(right eye)
Representative
refraction
values
(right eye)
No. 00113
'02. 4. 9 11:27 AM
Name:
VD:12.0
PD:67.0
-REF[R] SPH
CYL
- 2.50
- 1.12
- 2.50
- 1.12
- 2.50
- 1.12
- 2.62
- 0.87
- 2.50
- 1.00
- 2.50
- 1.00
- 2.50
- 1.12
- 2.50
- 1.00
✽
[L]
Measured
refraction
values
(left eye)
Representative
refraction
values
(left eye)
Measured
keratometry
values
(right eye)
Representative
keratometry
values
(right eye)
✽
CHART:H
CYL
- 0.87
- 0.87
- 0.87
- 0.87
- 0.87
- 0.87
- 0.87
- 0.87
✽ - 8.38
R1
R2
AV
CYL
R2
8.12
8.13
8.12
8.14
8.12
8.13
8.12
8.12
10
AX
52
54
54
53
53
51
53
53
53
- 1.87
- 0.87
(S + C / 2 = - 2.25)
-KER[R] R1
8.38
8.37
8.39
8.40
8.39
8.38
8.37
8.37
REF PRINT:
KER PRINT:
MESSAGE:
TIME SETTING:
R–K Mode:
Fixation chart brightness
AX1
42
41
42
43
42
41
42
42
AX2
132
131
132
133
132
131
132
132
8.13
41
mm
D
8.36
40.25
8.13
41.50
8.26
40.87
- 1.25
131
deg
41
131
Measured keratometry
values (left eye)
10
41
ALL
ALL
ON
12-hour display
RKP
Right eye refraction confidence value
Spherical equivalent for right eye
[L]
Right eye eccentricity
This value is used for comparing
the central curvature versus the
peripheral curvature.
The meaning is as follows.
• About 0.5 is normal.
• The eye approaches a spherical
shape as this value approaches 0.
• Peripheral sagging is higher as
this value approaches 1.
Use this information as a reference
when selecting contact lenses.
Left eye refraction
confidence value
Spherical equivalent
for left eye
Right eye horizontal
center measurement
value
Right eye vertical
center measurement
value
Left eye horizontal
center measurement
values
Left eye vertical
center measurement
values
Left eye
eccentricity
R1
8.44
8.44
8.45
8.44
8.45
8.44
8.45
8.44
✽ - 8.44
R1
R2
AV
CYL
Representative
keratometry values
(left eye)
Message area
22
User settings in this example:
AX
114
114
115
113
114
114
114
114
114
- 2.50
- 1.00
(S + C / 2 = - 3.00)
SPH
- 1.87
- 1.87
- 1.87
- 1.87
- 1.75
- 1.87
- 1.87
- 1.87
Date and time of
measurement
R2
8.14
8.14
8.13
8.14
8.14
8.14
8.14
8.14
AX1
40
40
40
40
40
40
40
40
AX2
130
130
130
130
130
130
130
130
8.14
40
mm
D
8.44
40.00
8.14
41.50
8.29
40.75
- 1.25
130
deg
41
131
-KER (PERI)[R]
mm
H
7.95
V
7.79
D
42.50
43.37
PERI (25° )
mm
T
7.96
N
8.03
S
7.99
I
8.02
E (H ) = 0.267
E (V ) = 0.606
E (AV) = 0.461
[L]
H
V
mm
7.89
7.71
D
42.37
42.00
42.25
42.12
D
47.75
43.75
PERI (25°)
mm
T
7.90
N
7.92
S
7.94
I
8.00
E (H ) = 0.190
E (V ) = 0.673
E (AV) = 0.499
D
42.75
42.62
42.50
42.25
RIGHTON SPEEDY-K
RIGHTON SPEEDY-K NIKON SPEEDY-K
Radius curvature
during right eye
periphery
measurement
(tangential direction)
Refractive power
of cornea
(right eye periphery
measurement)
Radius curvature
during left eye
periphery
measurement
(tangential direction)
Refractive power
of cornea
(left eye periphery
measurement)
3. Measurement Method
3
Press the
PRINT
key again if after printing you want to re-print (or resend) the data or if you want
to make an eye print. The following screen will appear.
PUSH JOYSTICK TO EXIT
PRINT
• Pressing
R–K /1
SEND
PRINT/SEND EYE–PRINT
will re-print the measured results.
• Pressing RETRO/2 will resend the data. (→ P.43)
• Pressing
• Pressing
will re-print and resend the data. (→ P.43)
V D /3
A-C-M
will make an eye print.
QUICK /4
Example of Eye Print Data
No. 00113
'02. 4. 9 11:27AM
Name:
VD:12.0
PD:67.0
[R]
SPH CYL
✽
- 2.50 - 1.00
[L]
✽
SPH CYL
- 1.87 - 0.87
CHART:H
AX
114 10
AX
53
10
AUTOREFRACTOKERATOMETER
SPEEDY–K
23
4
After printing, the following screen will appear if the RV IR ID setting (infrared transmission setting
when there is more than one Auto Optester) is “SELECT”. (→ P.39)
Select the ID number of the Righton Auto Optester “Remote Vision” you want to send the data.
PRESS UNIT No.
PUSH JOYSTICK TO EXIT
1
• Pressing
R–K /1
2
3
4
will send data to the Remote Vision with Unit No. “1”.
• Pressing RETRO/2 will send data to the Remote Vision with Unit No. “2”.
• Pressing
• Pressing
will send data to the Remote Vision with Unit No. “3”.
V D /3
A-C-M
will send data to the Remote Vision with Unit No. “4”.
QUICK /4
For details on setting the unit number for Righton Auto Optester “Remote Vision”, please refer to the
Remote Vision instruction manual.
3 - 6
Miscellaneous
■ Automatic Fogging
The auto fogging mechanism aids measurement by facilitating patient eye fixation and minimizing
eye accommodation.
In Auto Measurement or Continuous Measurement Mode, a
mark will appear on the monitor screen
and auto fogging will be automatically activated when the light spot enters the alignment mark. When
auto fogging ends, the
mark will disappear and measurement will automatically start.
In Manual Measurement Mode, pressing the measurement switch after the OK mark (→ OK ←)
appears will activate auto fogging and measurement will be performed.
■ IOL Patients
This unit can measure IOL patient using the same procedure as normal eyes without any switching of
switches.
When measuring patients with Intra Ocular Lens (IOL), this unit may display differing measurements
or show a low consistency value as a result of noise that is caused by reflections due to the nature or
conditions of the IOL.
24
3. Measurement Method
■ When Keratometry Measurement is Impossible
When keratometry measurement is impossible, particularly when
T
R1
N
A1
S
R2
peripheral keratometry measurement is impossible, check that
I
A2
R 00 / L 00
RKP
the eyelashes or eyelids are not blocking the measuring light.
Have the patient open their eyes wide so that the measuring light
is not blocked and then take the measurement.
H
During refraction-keratometry or keratometry measurement,
R 00001
S
C
R 00 / L 00
VD 12.0 / PD
A
A
keratometry measuring lights will appear on the patient’s cornea
and can be seen on the TV monitor. (The diagram on the right
depicts RKP Mode.)
If these keratometry measuring lights cannot be seen, can only
be partially seen, or appear hazy, the measuring light is being
blocked. This may be due to blocking by the eyelashes or eyelids,
blinking or pathology of the cornea.
If the nasal side (N) cannot be measured during peripheral
keratometry measurement, check that the patient’s face is facing
straight-forward and that his or her nose is not blocking the
measuring light.
Example of blocked
keratometry
measuring lights
■ Measuring a Hard Contact Lens Base Curve
(The base curve of a soft contact lens cannot be measured.)
1
Place several drops of water on the supplied hard
contact lens holder.
2
Place the hard contact lens on the holder (to face the
side to be measured toward the instrument).
3
Mount the supplied model eye onto the forehead rest.
Hard contact lens
holder
With the lens attached, install the hard contact lens holder onto the model eye.
4
Take measurements using normal keratometry measurement procedures.
25
■ Error Messages
The following table summarizes possible causes on the right when an error message appears on the
screen. Methods of dealing with problems are given below the table.
Error message
Cause
AL ERR
The optical axis of the unit is not aligned with the optical axis of the patient’s eye.
RK ERR
Refraction and keratometry measurement values cannot be obtained for some
reason even though alignment has been established.
This may be due to eyelashes, blinking, irregular astigmatism, cataracts, small
pupils, etc.
REF ERR
Refraction measurement values cannot be obtained for some reason even though
alignment has been established.
This may be due to eyelashes, blinking, irregular astigmatism, cataracts, small
pupils, etc.
KER ERR
Keratometry measurement values cannot be obtained for some reason even though
alignment has been established.
This may be due to eyelashes, blinking, irregular astigmatism, cataracts, small
pupils, etc.
• If an error message appears, align the light spot inside the alignment mark once more and press the
measurement switch again.
• If a patient has drooped eyelashes, it will be necessary to make the eyelashes stay out of the outer
line on the alignment mark on the TV monitor screen. If necessary, have the patient or an assistant
gently lift the eyelid with their fingertip.
• In Manual Measurement Mode, it is good practice to press the measurement switch immediately
after the patient blinks.
• The unit automatically re-measures if the patient blinks during measurement.
• The measurement may not be made if the patient is suffering from an eye disease such as a cataract,
abnormal retina, opaque condition of the cornea, crystalline lens or vitreous body.
• If the patient’s pupil is highly reactive to brightness, the fixation chart brightness setting should be
reduced and then the eye measured. (→ P.30) The inner diameter of the mire ring is about 2.5 mm.
• When <S+C> is outside the range -18 to +23D, or when <C> is outside the range -12 to +12D,
measurement cannot be made.
• Measurement with a contact lens on: Measurement is usually possible. However, if the contact
lens is not properly fitted, the correct values may not be obtained. Any dirt or scratches on the
contact lens surface may result in measurement failure.
• Measurement with glasses on: Measurement is possible if the lens is tilted slightly. If the lens is
tilted at too large an angle, correct values will not be obtained. Measurement may not be possible
if light is reflected from the lens surface into the measuring window, or if the glasses have a colored
lens of low transmission.
26
3. Measurement Method
■ Representative Values for Refraction and Keratometry Measurements
Representative values are a guide to help you choose which one of the several measured values for
one eye to choose. An asterisk (*) indicates the representative values on a printout. For a sample
printout, please see P.22. Consider the following points when selecting one value from several
measured refraction values that vary widely.
● Substantial variance of SPH values
The patient’s eye may be accommodating. Re-measure the eye.
● Substantial variance of CYL and AX values
AX will tend to be somewhat unstable when the eye is weak astigmatically (CYL value of less
than 0.5D). Other causes may include the following.
• Eyelashes are occluding the pupil.
• The pupil diameter is less than the minimum measurable diameter of φ 2.5 mm.
• Part of the eye is opaque or irregular astigmatically.
Normally a low confidence value will be reported in the above situations.
If the eyelashes or pupil diameter affect the measurement, you should re-measure the eye paying
close attention to these factors.
■ Refraction Confidence Values
A confidence value indicates how widely measured results vary. It is only displayed when measurements are made three or more times and is printed at the right of printed results. For a sample printout,
please see P.22.
• 8 or higher: Variance is low
• 7 or less: There is variance. Care is required in the handling of these measured results.
■ Storing Measured Values
This unit can only store the representative values of refraction measurements for up to 100 patients.
If an excess of representative values are stored, the older data will be deleted.
• In Auto Measurement Mode:
Data is automatically stored after measurements for right and left eyes are complete.
Press the
PRINT
key after completing one eye, if you want to store data for one eye only.
• In Continuous or Manual Measurement Mode:
Data is stored when the
PRINT
key is pressed after measurements for one or both eyes have
been completed.
The next measurement is possible after data has been stored. The patient No. will increase by one at
this time.
■ Automatic Power Conservation
The unit will automatically enter power conservation mode if no switches or keys have been operated
for three or more minutes. Press any key when you need to make measurements again.
27
Retro Mode
Retro Mode allows you to observe the inside of a pupil more easily and to more readily understand measurement
status when the measured values vary or when the confidence value is low.
1
Press the RETRO/2 key on the Measurement Mode screen.
The unit will enter Retro Mode.
In Retro Mode, fixation chart brightness is automatically switched to “L”.
RETRO
OFF
2
Align the position of the measuring head with the patient’s eye and focus the image if not already
focused.
If there is foreign matter obstructing the measuring light such as opacity in the crystalline lens, it will
appear as a black shadow on the screen.
RETRO
OFF
d • Foreign matter in the pupil may be more clearly seen if the image of the patient’s eye is
decentered slightly. In particular, an opacity at the center may not be visible. Direct the
measuring light so that it is not obstructed by an opacity.
• If an external illumination such as a fluorescent room lamp enters the patient’s eye, foreign
matter in the pupil may not be visible. Be sure that no external light enters the patient’s eye.
3
28
Pressing the RETRO/2 key will cancel Retro Mode and resume the previous measurement mode.
Making Various Settings (Setup)
The following settings can be made for this unit.
START No.
R1
A1
R2
A2
R 00 / L 00
RK
No.
R–K ORDER
: 12345
V D /3
H
R 00001
S
C
R 00 / L 00
VD 12.0 / PD
A
A
V D /3
0123
Measurement mode screen
(see P.30)
89R
SELECT EXIT
Patient No. input screen
(see P.32)
SET
SETUP
R–K ORDER screen
(see P.34)
REF SETTING
START No. : 12345
PRINT
R–K ORDER
MEMORY (001/100)
REF SETTING
KERATO SETTING
OTHER SETTING
MEMORY (001/100)
CYL
: —
STEP
: AUTO
FRAME VD : 12.0
PRINT ALL
SEND ALL
DELETE ALL
V D /3
V D /3
SELECT EXIT
SELECT EXIT
V D /3
4567
SELECT EXIT
REF SETTING screen
(see P.37)
SETUP screen
(see P.30)
PRINT
MEMORY output screen
(see P.36)
KERATO SETTING
AUTO PRINT : ON
REF
PRINT : ALL
KER PRINT : ALL
MESSAGE
: ON
1 : RK
2 : R
3 : K
4 : RKP
5 : KP
KEEP R–K : ON
V D /3
mm/D
: mm
INDEX
: 1.3375
KERATO TRANS : ON
V D /3
SELECT EXIT
+
SELECT EXIT
OTHER SETTING
CLOCK
V D /3
SOUND
KEEP QUICK
RS232C
RV IR ID
WORD
EDIT MESSAGE
:
:
:
:
:
:
:
–
EXIT
Time and date setting screen
(see P.41)
KERATO SETTING screen
(see P.38)
PRINT setup screen
(see P.33)
CLOCK
02. 12. 12 12 : 32 am
YEAR
: 98
MONTH
: 12
DAY
: 12
HOUR
: 12
MINUTE
: 32
DATE–FORM : YMD
TIME–FORM
: AM / PM
EDIT MESSAGE
02.12.12
12.32 am
OFF
OFF
NNKE
1
EG
AUTOREFRACTOKERATOMETER
SPEEDY-K
SELECT EXIT
OTHER SETTING screen
(see P.39)
AUTOREFRACTOKERATOMETER
SPEEDY-K
V D /3
A B C D
K L M N
U V W X
0 1 2 3
( ) # $
PUSH SET
E F G H
O P Q R
Y Z
.
4 5 6 7
& ? ! %
TO EXIT
I
S
8
✽
J
T
/
9
+
SELECT BS
EDIT MESSAGE screen
(see P.42)
29
5 - 1
Measurement Mode Screen
R1
A1
R2
R 00 / L 00
VD 12.0 / PD
A
A
H
R 00001
S
A2
R 00 / L 00
RK
C
"Select R–K mode", "Enter retro mode", "Change fixation chart brightness", and "Change VD value"
operations are performed on this screen.
R–K /1 : Selects the R–K mode. RK→ RKP → R → K → KP → RK...
RETRO/2 : Enters retro mode. (→ P.28)
V D /3 : Changes fixation chart brightness (press a short time). H (bright) → L (dark) → H (bright)...
Changes the VD value (press a long time). 12.0 → 0.0 → 12.0...
A-C-M
QUICK /4 : Switches the measurement mode. Auto → Continuous → Manual → Quick → Auto...
SET
5 - 2
: Goes to the "SETUP Screen" (see below).
SETUP Screen
SETUP
START No. : 12345
PRINT
R–K ORDER
MEMORY (001/100)
REF SETTING
KERATO SETTING
OTHER SETTING
SELECT EXIT
The following settings can be made on the "SETUP screen".
Use the
R–K /1
and RETRO/2 key to move the cursor to the item you want to set, and use the
V D /3 key to select that item. Use the
ment mode.
30
A-C-M
QUICK /4 key to store the setting data and return to measure-
5. Making Various Settings (Setup)
Item
START NO.
Setting Description
Pressing
V D /3 when the cursor is at this item position will bring up the
"Patient No. Input Screen".
PRINT
Pressing
V D /3 when the cursor is at this item position will bring up the
"PRINT Setup Screen".
R–K ORDER
Pressing
MEMORY
Pressing
REF SETTING
Pressing
V D /3 when the cursor is at this item position will bring up the
"R–K ORDER Screen".
V D /3 when the cursor is at this item position will bring up the
"MEMORY Output Screen".
V D /3 when the cursor is at this item position will bring up the
"REF SETTING Screen".
KERATO SETTING
Pressing
V D /3 when the cursor is at this item position will bring up the
"KERATO SETTING Screen".
OTHER SETTING
V D /3 when the cursor is at this item position will bring up the
"OTHER SETTING Screen".
Pressing
31
5 - 3
Patient No. Input Screen
Pressing
V D /3 on the "SETUP screen" when the cursor is at "START No." will bring up the "Patient
No. input screen".
Pressing a function key on this screen will display a "number input screen". Press the function key
corresponding to the desired number to enter that number in the underlined field.
START No.
No.
■ Example setting: Entering the number "7"
: 00001
Press
Press
0123
R–K /1
4567
V D /3 : Goes to the "4567" input screen.
A-C-M
: Inputs the number "7" in the underlined field.
QUICK /4
89R
.................................................... Moves the underline to the right
RETRO/2 ................................... Goes to "0123" input screen
Press the corresponding function
⇒
START No.
No.
: 00001
key to enter 0, 1, 2 or 3.
0
V D /3
...................... Goes to "4567" input screen
⇒
1
2
3
6
7
START No.
No.
: 00001
Press the corresponding function
key to enter 4, 5, 6 or 7.
4
A-C-M
QUICK /4 ......... Goes to "89 input and reset" screen
⇒
5
START No.
No.
: 00001
Press the corresponding function
key to enter 8 or 9 or to reset.
8
9
RESET
• The underline will go down one digit each time a number is input.
• To reset the patient No. to 00001, press the
• Pressing the
SET
V D /3 key on the "89 input and reset" screen.
key after setting all digits will return to the "SETUP screen".
• Once a patient No. is set, all patient numbers will be automatically increased by "1" for subsequent
measurements.
• This screen is designed to enter the highest order digit first.
32
5. Making Various Settings (Setup)
5 - 4
Print Setup Screen
Pressing
V D /3 when the cursor is at the "PRINT" item position on the "SETUP Screen" will bring
up the "PRINT Setup Screen". This screen is used to select print settings. Select setting contents by
moving the cursor to the item you want to set and pressing the
V D /3 key. Pressing
A-C-M
will
QUICK /4
return to the "SETUP Screen".
PRINT
AUTO PRINT : ON
REF PRINT : ALL
KER PRINT : ALL
MESSAGE
: ON
SELECT EXIT
Auto print setting for Auto Measurement Mode:
ON → OFF → ON...
ON: Performs Auto Print during Auto Measurement Mode
OFF: Does not perform Auto Print during Auto Measurement Mode.
Print setting for measured refraction values:
ALL → REP → OFF → ALL...
ALL: Prints measured values and representative values if there are
measured refraction values.
REP: Prints representative values if there are measured refraction
values.
OFF: Does not print.
Print setting for measured keratometry values:
ALL → REP → OFF → ALL...
ALL: Prints measured values and representative values if there are
measured keratometry values.
REP: Prints representative values if there are measured keratometry
values.
OFF: Does not print.
Print setting for messages: ON → OFF → ON...
ON: Print messages.
OFF: Do not print messages.
R–K /1 : Moves the cursor down.
RETRO/2 : Moves the cursor up.
V D /3 : Selects setting contents for the item at the cursor position.
A-C-M
: Returns to the "SETUP Screen".
QUICK /4
33
5 - 5
R–K ORDER Screen
Pressing
V D /3 when the cursor is at the "R–K ORDER" position on the "SETUP Screen" will bring
up the "R–K ORDER Screen". This screen is used for the R–K Mode Setting.
d What is the R–K Mode Setting?
The unit switches to another R–K mode when the
R–K /1
key is pressed while on the measurement
screen. "R–K Mode Setting" refers to the types of R-K modes which can be selected for measurement
and their switching order.
It is possible to set up to five modes.
R–K ORDER
1 : RK
2 : R
3 : K
4 : RKP
5 : KP
KEEP R–K : ON
SELECT EXIT
The figure above shows factory settings.
R–K /1 : Moves the cursor down.
RETRO/2 : Moves the cursor up.
V D /3 : Selects setting item at the cursor position.
A-C-M
: Returns to the "SETUP Screen".
QUICK /4
The setting will change in the order RK → R → K → RKP → KP → --- with every depression
V D /3 when the cursor is positioned at one of the locations 1 through 5. The cursor is moved using
of
R–K /1
or RETRO/2 .
RK
: After keratometry measurement (center), refraction measurements are made.
R
: Only refraction measurements are made.
K
: Only keratometry (center) measurements are made.
RKP : After keratometry measurement (center and periphery), refraction measurements are made.
KP
34
: Keratometry measurements (center and periphery) are made.
5. Making Various Settings (Setup)
■ Example: To set the R–K Mode Setting to RK → R → K → KP .
R–K ORDER
1 : RK
2 : R
3 : K
4 : KP
5 : --KEEP R–K : ON
SELECT EXIT
Move the cursor to 1 using
R–K /1
and/or RETRO/2 , and select RK using
V D /3 .
Move the cursor to 2 using
R–K /1
and/or RETRO/2 , and select R using
V D /3 .
Move the cursor to 3 using
R–K /1
and/or RETRO/2 , and select K using
V D /3 .
Move the cursor to 4 using
R–K /1
and/or RETRO/2 , and select KP using
V D /3 .
Press
A-C-M
and return to the "Setup Screen".
QUICK /4
d "KEEP R–K" setting
If "KEEP R–K" is set to ON, the last R–K mode selected will be restored when the power is turned on
again.
If "KEEP R–K" is set to OFF, the mode assigned to the first mode given by the R–K ORDER setting
(among 1 to 5) will be restored when the power is turned on again.
35
5 - 6
Memory Output Screen
Pressing
V D /3 on the "SETUP screen" when the cursor is at "MEMORY" will bring up the "memory
output screen". From this screen, it is possible to print, delete or send via RS-232C all past measured
value data (for up to 100 patients) stored by the unit.
• Data cannot be selected.
• The number in parentheses next to "MEMORY" indicates the number of data entries currently stored.
Position the cursor next to the desired item and press the
V D /3 key to execute that function.
MEMORY (001/100)
Prints all stored data including representative
values, dates, ID Nos. and so on in a list format.
PRINT ALL
SEND ALL
DELETE ALL
Sends all stored data to another device.
Deletes all stored data.
SELECT EXIT
R–K /1 : Moves the cursor down.
RETRO/2 : Moves the cursor up.
V D /3 : Selects setting contents for the item at the cursor position.
A-C-M
: Returns to the "SETUP Screen".
QUICK /4
• A confirmation screen such as the following will appear if you attempt to execute "DELETE ALL".
Press
R–K /1
(YES) to delete all data. Press RETRO/2 (NO) if you do not wish to delete all data.
After this screen, the unit will return to "memory output screen".
MEMORY (001/100)
DELETE OK?
YES
36
NO
5. Making Various Settings (Setup)
5 - 7
Ref Setting Screen
Pressing
V D /3 when the cursor is at the "REF SETTING" item position on the "SETUP Screen"
will bring up the "REF SETTING Screen". This screen is used to make refraction measurement settings.
Move the cursor to the item you want to set and select settings using the
Pressing
V D /3 key.
A-C-M
will return to the "SETUP Screen".
QUICK /4
REF SETTING
CYL
: —
STEP
: AUTO
FRAME VD : 12.0
SELECT EXIT
Astigmatism sign setting: – → ± → + → –...
–: Minus display for astigmatism sign
±: Mixed display for astigmatism sign
+: Plus display for astigmatism sign
Measurement value (S, C) display step setting:
AUTO → 0.25 → 0.12 → AUTO...
AUTO: A 0.12D step is used to display the measured values
within the range +/-3D.
A 0.25D step is used to display the values outside
this range.
0.25:
0.25D step
0.12:
0.12D step
Corneal vertex distance setting:
12.0→13.5→13.75→15.0→16.0→0→12.0...
R–K /1 : Moves the cursor down.
RETRO/2 : Moves the cursor up.
V D /3 : Selects setting contents for the item at the cursor position.
A-C-M
: Returns to the "SETUP Screen".
QUICK /4
37
5 - 8
Kerato Setting Screen
Pressing
V D /3 when the cursor is at the "KERATO SETTING" item position on the "SETUP Screen"
will bring up the "KERATO SETTING Screen". This screen is used to make keratometry measurement
settings.
Move the cursor to the item you want to set and select settings using the
Pressing
V D /3 key.
A-C-M
will return to the "SETUP Screen".
QUICK /4
KERATO SETTING
mm/D
: mm
INDEX
: 1.3375
KERATO TRANS : ON
SELECT EXIT
Display unit setting: mm → D → mm...
Setting for refractive power of the cornea during D conversion:
1.3375 → (1.332) → (1.336) → 1.3375
Transmission setting for measured keratometry values:
ON → OFF → ON...
(This setting indicates whether or not measured keratometry
values should also be sent when using RS-232C or infrared
transmissions.)
R–K /1 : Moves the cursor down.
RETRO/2 : Moves the cursor up.
V D /3 : Selects setting contents for the item at the cursor position.
A-C-M
: Returns to the "SETUP Screen".
QUICK /4
5 - 9
OTHER SETTING Screen
Pressing
V D /3 on the "SETUP screen" when the cursor is at
OTHER SETTING
CLOCK
"OTHER SETTING" will bring up the "OTHER SETTING screen".
From this screen, the following settings can be made.
Move the cursor to the item you want to set and select settings using
the
V D /3 key.
Pressing A-C-M /4 will return to the "SETUP Screen".
QUICK
SOUND
KEEP QUICK
RS232C
RV IR ID
WORD
EDIT MESSAGE
:
:
:
:
:
:
:
02.12.12
12.32 am
OFF
OFF
NNKE
1
EG
AUTOREFRACTOKERATOMETER
SPEEDY-K
SELECT EXIT
38
5. Making Various Settings (Setup)
Item
CLOCK
Setting Description
Available Selections
Pressing
V D /3 when the cursor is at this
item position will bring up the "time and date
setting screen". (→ P.41)
———
SOUND
Turns the sound ON/OFF.
ON → OFF → ON...
KEEP QUICK
If Quick Measurement Mode has been set and
power is turned off, this setting indicates
whether or not Quick Measurement Mode
should be restored when power is turned on
again.
• ON: Restore Quick Measurement Mode.
• OFF: Do not restore Quick Measurement Mode.
ON → OFF → ON...
RS-232C
Sets the data to transmit on the RS-232C port.
• OFF: Select this when nothing is connected to
the RS-232C.
• NNKE: Select this when connected to an Auto
Optester "Remote Vision".
• NK:Select this when connected to a Nikon
Auto Optester "OT3A", "7A" or "8A".
• PC: Select this when connected to a PC.
• E1 to E5: Reserved for future use
OFF → NNKE → NK → PC
→ E1 → E2 → E3 → E4 → E5
→ OFF...
RV IR ID
Sets the infrared communications destination
when there is more than one Auto Optester
"Remote Vision".
• OFF: Select this when there are no infrared
communications with a Remote Vision.
• 1 to 4: Select the number of the Remote Vision
with which you want to communicate.
• SELECT: Select this when you want to select
from more than one Remote Vision.
OFF → 1 → 2 → 3 → 4
→ SELECT → OFF...
WORD
Sets the language to use in on-screen displays
and printouts. (See table on next page.)
EG → DN → DU → FR → GR
→ HN → IN → IT → NR → PL
→ PR → SP → SW → TR → JP
→ EG...
EDIT
MESSAGE
when the cursor is at this
Pressing
V D /3
item position will bring up the "EDIT
MESSAGE screen". (→ P.42)
———
39
Available Settings for WORD
RIGHT
LEFT
SPH
CYL
AXIS
PD
VD
EG (ENGLISH)
R
L
S SPH
C CYL
A AX
PD
VD
DN (DANISH)
H
V
S SPH
C CYL
A AX
PD
VD
DU (DUTCH)
R
L
S SPH
C CYL
A AS
PD
VD
FR (FRENCH)
D
G
S SPH
C CYL
A AXS
PD
VD
GR (GERMAN)
R
L
S SPH
C CYL
A ACH
PD
VD
HN (HUNGARIAN)
J
B
S SZF
C CYL
T TEN
PT
VT
IN (INDONESIAN)
KN
KR
S SPH
C CYL
A AX
PD
VD
IT (ITALIAN)
D
S
S SF
C CYL
A AS
PD
VD
NR (NORWEGIAN)
H
V
S SPH
C CYL
A AXS
PD
VD
PL (POLISH)
P
L
S SF
C CYL
O OS
RZ
VO
PR (PORTUGUESE)
D
E
E ESF
C CIL
E EIXO
DP
DV
SP (SPANISH)
D
I
S SPH
C CIL
A AXE
PD
VD
SW (SWEDISH)
H
V
S SF
C CYL
A AX
PD
TA
TR (TURKISH)
R
L
S SPH
C CYL
A AXS
PM
VM
JP (JAPANESE)
R
L
S SPH
C CYL
A AX
PD
VD
Indication in printouts
40
5. Making Various Settings (Setup)
5 - 10
Time and Date Setting Screen
Pressing
V D /3 on the "OTHER SETTING screen" when the cursor is at "CLOCK" will bring up the
"time and date setting screen". From this screen, the time, date, time display format, and date display
format can be set.
CLOCK
02. 12. 12 12 : 32 am
YEAR
: 02
MONTH
: 12
DAY
: 12
HOUR
: 12
MINUTE
: 32
DATE–FORM : YMD
TIME–FORM
: AM / PM
+
–
EXIT
Year: 00 to 99 (last two digits of year)
Month: 1 to 12 or Jan to Dec
Day:
1 to 31
Hour: 0 to 12 or 0 to 24
Minute: 00 to 60
Date display format:
YMD (year/month/day), MDY (month/day/year),
DMY (day/month/year), YMND (year/month name/
day), MNDY (month name/day/year), DMNY (day/
month name/year)
Time display format: AM/PM, 24H
R–K /1 : Moves the cursor down.
RETRO/2 : Moves the cursor up.
V D /3 : Selects setting contents for the item at the cursor position.
A-C-M
: Returns to the "SETUP Screen".
QUICK /4
41
5. Making Various Settings (Setup)
5 - 11
EDIT MESSAGE Screen
Pressing
V D /3 on the "OTHER SETTING screen" when the cursor is at "EDIT MESSAGE" will
bring up the "EDIT MESSAGE screen".
From this screen, messages up to 24 characters by 2 lines (48 total characters) can be input.
Pressing the
SET
key will store the message and return to the "OTHER SETTING screen".
EDIT MESSAGE
AUTOREFRACTOKERATOMETER
SPEEDY-K
A B C D
K L M N
U V W X
0 1 2 3
( ) # $
PUSH SET
E F G H
O P Q R
Y Z
.
4 5 6 7
& ? ! %
TO EXIT
I
S
8
✽
SELECT BS
R–K /1 : Moves the cursor down.
RETRO/2 : Moves the cursor up.
V D /3 : Selects the character at the cursor position.
A-C-M
: Goes back one space.
QUICK /4
42
J
T
/
9
+
Connecting to External Devices
■ RS-232C Interface Connector
The power supply includes a connector for connecting to external devices. This connector is for interfaces
which conform to the EIA RS-232C standard. It is possible to send measured results to external devices such
as a Righton or Nikon Auto Optester or commercially available PC via this connector.
When a Righton Auto Optester (such as Remote Vision) or a Nikon Auto Optester (such as OT3A, OT7A,
OT8A) is connected, the lens power data measured by Auto Refractometer is automatically transferred to the
Auto Optester, allowing a speedier subjective examination.
If you create and run an appropriate software program on a PC, it is also possible to store data and statistically
process it more efficiently.
For details on this interface, please contact your nearest Nikon representative.
■ Video Signal Output Connector
This connector is for the video output terminal (EIA standard composite video signal) by which you can
record the image by an external video printer.
43
Maintenance
7 - 1
Checking Measurement Accuracy
Before using this unit check its measurement accuracy using the model eye provided.
For details on how to measure using the model eye and checking accuracy, refer to "2. Preparation".
7 - 2
Replacing a Printer Paper Roll
When printer paper is about to run out, a red line will appear on the paper. In this case, replace the paper
roll.
1
Turn the unit's power ON.
2
Push the "PUSH" part of the printer's cover,
remove the cover, and remove the old roll.
3
Pull out the paper of the new roll past the
PUSH
Push
location of the adhesive and crease it. Gently
to open
tear the paper along the crease. Tearing the
paper in this way avoids printing on the part
with adhesive. Also, if the sharp corners have
been cut after tearing the paper, you can insert
the paper more easily.
4
Press
PRINT
Cut off the
corners of the
paper.
to feed the paper. Insert printer
paper into the feeding port as shown in the figure
so that it will feed properly.
d • Do not to insert the printer paper upside down. Release
• If the printer paper jams or is inserted at an
lever
angle, raise the release lever and adjust the
position of the printer paper.
• The paper will not feed when the lever is raised.
• If the printer paper is used up during printing,
the message "PAPER END" will appear. If this happens, insert a new paper roll as previously
described. Printing will start again from the beginning of the data. No key operations are
accepted when the message "PAPER END" appears. Do not turn the unit's power OFF while
the message "PAPER END" is displayed.
5
44
Replace the printer's cover.
7. Maintenance
7 - 3
Changing the Fuses
CAUTION Always turn the power switch OFF and unplug the power cord from the outlet
before inspecting or changing fuses.
Use the following type of fuse for both fuses. Do not use any other type of fuse.
Spare fuses may be ordered from your nearest Righton representative.
"Time lag fuse T1AL/250V"
SCHURTER 0034.3117
A fuse may be blown if the POWER lamp and/or fixation chart do not light or the TV screen does not
brighten even though the power switch is ON.
Unfasten the tabs on both sides of the fuse holder with the tip of a small flat-top screwdriver. Remove the
fuse from the fuse holder to check and replace it.
Fuse holder
45
7. Maintenance
7 - 4
Cleaning the Chin and Forehead Rests
Be sure to clean the chin and forehead rests periodically. Wipe these surfaces with a soft cloth or tissue
paper moistened with lens cleaning liquid or absolute alcohol (commercially available).
7 - 5
Cleaning the Measurement Window
The measurement window is dust-resistant glass. If any dust on the glass is visible from the patient side,
use the blower provided to powerfully blow air several times to remove the dust. If the dust cannot be
removed, wipe the glass with a lens cleaning liquid or absolute alcohol (commercially available).
d Because the dust-resistant glass is thin and fragile, do not press it too hard.
7 - 6
Cleaning the Model Eye
Sometimes correct values cannot be obtained when measuring the model eye due to dust or fingerprints
on the model eye's lens surface. If this occurs, gently wipe the lens surface with a clean and soft cotton
cloth (such as gauze) moistened with a little cleaning solution or absolute alcohol (commercially available)
taking care not to scratch the lens surface. (Never use a handkerchief or degreased cotton wool.)
d A microscopic scratch on the lens surface of the model eye may reduce the accuracy of measurement.
Be careful not to bump the model eye against a hard object or drop it on the floor.
7 - 7
Cleaning the Painted Components
Do not use organic solvents (such as alcohol, ether, or paint thinner) on painted components, plastic
components, or printed labels. Doing so could result in discoloration or in the peeling of printed characters.
If the dirt is hard to remove, dampen a piece of gauze with a small amount of neutral detergent thinned
with water, then wipe the dirty surface gently.
46
Troubleshooting
■ Check the following items before requesting repairs.
Symptom
POWER lamp does
not light even though
power is on.
Cannot make
measurements.
Measured values are
not stable.
Does not print
anything.
Paper is jammed.
Paper does not come
out easily.
Check Point
Cause and Solution
Is the input power cord connected
securely?
Securely connect the input power
cord.
Are the fuses blown?
If the fuses are blown, replace them.
(→ P.45)
Is foreign matter obstructing light
inside the pupil?
Check the eye in Retro Mode.
(→ P.28)
Are you using the specified paper?
Use the specified printer paper.
Is the printer's release lever raised?
Lower the release lever toward you.
Is the printer paper loaded upside
down?
Insert the printer paper correctly.
(→ P.44)
Is the printer paper loaded correctly?
Insert the printer paper correctly.
(→ P.44)
Is the cover pressing on the printer
paper?
Attach the cover correctly. (→ P.44)
■ If any of the following errors appear on the screen, please contact your nearest Righton representative as
this indicates internal malfunction of the unit.
• ERR** (** represent numeral.)
• BACKUP ERR
47
Specifications
9 - 1
Measurements
•
•
•
48
Refraction Measurements
Measurement range:
S+C: -18 to +23 Dp (measurement range for a VD value of 12)
C: 0 to -12 Dp or 0 to +12Dp
AX: 1 to 180˚
Minimum unit:
S, C: Auto/0.25D/0.12D (switchable)
AX: 1˚
Minimum pupil diameter:
ø 2.5 mm
Measurement wavelength:
860 nm
Keratometry Measurements
Measurement range:
Corneal radius curvature: 5 to 11 mm
Corneal astigmatism: 0 to -12 Dp
Minimum unit:
Corneal radius curvature: 0.01 mm
Corneal astigmatism: 0.12 Dp
Cylindrical axis: 1˚
Measurement area:
Center: 23˚, ø 3.2 (radius 8 mm)
Periphery: 50˚, ø 6.8 (radius 8 mm)
Common Functions (Measurement Time and Mode)
R–K mode:
Continuous measurement: RKP, RK
Single measurement: KP, R, K
Measurement time:
Refractometer only: Time to acquire one measurement: 0.01 sec.
Keratometry only: Time to acquire one measurement: 0.033 sec.
Measurement time during continuous measurement:
RKP: 0.45 sec/measurement at continuous measurement
RK:
0.35 sec/measurement at continuous measurement
KP:
0.25 sec/measurement at single measurement
R:
0.2 sec/measurement at single measurement
K:
0.15 sec/measurement at single measurement
Measurement mode:
Auto measurement:
Fixation chart:
Picture target
Fixation chart brightness:
2-level switchable illumination
Mire ring:
18-dot LED, ø 2.6 (at R8mm) for alignment
Contiguous operation of automatic start, stop,
and print is possible without operating any
keys.
Continuous measurement: Keratometry stops automatically,
refractometry is continuous.
Manual measurement:
Pressing the joystick one time results in one
measurement, holding it down results in
continuous measurement.
Quick Measurement:
Measurement is given priority over fogging to
decrease the time required for refraction
measurements.
9. Specifications
•
Retro illumination:
Pressing the RETRO/2 key turns off exterior illumination of the eye and
causes alignment marks and other displays to disappear allowing retro
illumination of the patient's eye for observation of cataracts, scratches, etc.
Corneal vertex distance:
0, 12, 13.5, 13.75, 15, 16 mm
PD measurement:
Up to 83 mm (depending on the sliding seat distance between left and
right eyes)
Unit of measurement: 1 mm
Left-right eye distinction:
Distinguished by measurement position versus the center of the sliding
seat.
Measurement Accuracy
Spherical and cylindrical power:
Radius curvature (center):
Radius curvature (periphery):
9 - 2
±0.25 D or less for 0 to ±10 D
±0.5 D or less for less than -10D and larger than +10D
±0.02 mm or less
±0.05 mm or less
Main Body and Miscellaneous
Main unit dimensions:
254 (W) x 480 (D) x 473 (H) mm
Weight:
Approx. 17 kg
Input voltage:
AC 100 V, 120 V or 230 V (50/60 Hz common)
Voltage set by voltage switcher
Power consumption:
0.5 A, 0.4 A or 0.2 A
Classification:
Protection class I, TYPE B
Real-time clock:
Built-in real-time clock for printing the year, month, day, hour and
minute
Interface:
RS-232C standard interface x 1
Infrared communications with Remote Vision
Printer:
58-mm wide line printer
Monitor:
5.5-inch black and white monitor
Power saving system:
Enters sleep mode if no keys are pressed for three minutes
Eye diagram printout:
Yes
Eye data memory:
Up to 100 patients
Classification of device
(EN60825-1:1994):
Class1 LED product
CLASS 1 LED PRODUCT
LED Klasse 1
Wavelength of LED:
855 to 870 nm
Radiation power:
245µWmax
Chopped frequency:
600 Hz
0459
49
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