Right Righton Speedy-K User manual

December.2008(1/2)
D023-6E

1
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
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.
Symbol for separate collection in European countries

2
Please Read This First for Your Safety.
CAUTION 1Intended 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 2Do Not Disassemble
Disassembling this instrument may lead to electric shock and/or malfunction of the instrument.
Never disassemble this instrument.
CAUTION 3During 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.)

3
CAUTION 4During 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%.
•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.
•Since this instrument is not water-proof in construction, never take it into locations where
liquids such as rain or beverages may get inside.
•If condensation (dew) forms, do not use the instrument until the condensation disappears.
•The environmental requirements for transport and storage are -40℃ to +70℃ in temperature
and 10% to 95% in humidity.
CAUTION 5Other 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,
No. 18 AWG rated at 125 V, 7 A minimum.
For 230 V area : 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.
•When transporting this instrument, always be sure to first tighten its securing screws. ( P.8)

4
OFF
•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 6Maintenance 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.
•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)

5
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

6
Nomenclature
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)
Infrared signal generator
Sends a signal to an Auto
Optester “Remote Vision”.
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.
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.
Fuse holder
Contains the fuse.
(→ P.45)
RS-232C interface
connector
Used when connecting to
external devices. (→ P.43)
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)

7
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
Show the target in this
window to the patient.
Height guide ring
Adjust the height of the
patient’s eyes to these
rings. (→ P.15)
Chin rest
Place the patient’s chin here.
Chin rest paper can also be
used for cleanliness. (→ P.8)
Chin rest height
adjustment knob
Turn to move the chin rest up
or down. (→ P.15)
Brightness control knob
Turn to adjust the brightness
of the TV monitor screen.
Contrast control knob
Turn to adjust the contrast of
the TV monitor screen.
Storage for transport
securing screws (1, 2)
Printer paper
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)
Height mark
(When the printer’s cover is opened)
Target line
for sliding seat
(→ P.15)
Sliding seat
Video signal output
connector
Used when connecting to an
external video equipment.

8
Preparation
2-1 Setting Up the Speedy-K
1Place the unit on a stable table (such as a power table).
2Remove 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.
3Plug the input power cord into the unit’s input power cord socket.
4Plug the other end of the input power cord into an AC power outlet.
5Turn the unit’s power switch ON. The POWER lamp will light, the TV monitor screen will brighten,
and the unit can now make measurements.
6Insert a printer paper roll. (→ P.44)
7Clean 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.

9
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

10
2-2 Measuring the Model Eye
1Insert the model eye’s two pins into the model eye mounting
holes in the forehead rest part.
2Check the VD value on the TV monitor.
(120V: 13.75, 230V: 12.0)
3Using the joystick lever, align the target with the model eye.
(For details on the measurement method, refer to P.12 to 27.)
4Compare 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.

11
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

12
Measurement Screen
The figure below is an example of a screen during measurement in RKP Mode.
Cornea radius curvature
(INFERIOR)
Measurement mode
Auto measurement mode
Continuous measurement mode
 Manual measurement mode
 Quick measurement mode
PRINT key
FUNCTION keys
VD 12.0 / PD64
R 08 / L 08
R 00001
R–K V D QUICK
SET
PRINT
POWER
/1 /2 /3 /4
S – 12.00 C – 6.00 A180 A
H
T 9.12 N 9.12 S 9.12 I 9.12
R2 9.12 A2 90
RETRO A-C-M
R 05 / L 05
RKP
R1 9.12 A1 180
Cornea radius curvature
(NASAL)
Cornea radius curvature
(TEMPORAL)
Cornea radius curvature
(flattest meridian)
R1 axis angle
Auto fogging mark
Mire ring
Alignment mark
Mark indicating
measuring underway
Left/right eye display
Patient No.
Cornea radius curvature
(SUPERIOR)
R2 axis angle
Left/right keratometry
measurement count
Left/right refraction
measurement count
VD setting value/
PD value
SET key
R–K mode
Fixation chart brightness
S: Spherical power 
C : Cylindrical power
A
: Cylindrical axis
A
C
Q
M
Cornea radius curvature
(steepest meridian)
Light spot
Keratometry
measuring light
Measurement Method
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
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...
QUICK
A-C-M /4
Switches the measurement mode Auto →Continuous →Manual →Quick →Auto...
(→P.14 – 20)

13
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.

14
Measurement Mode
RK Mode R Mode K Mode KP Mode RKP Mode
Auto measurement mode
(→P.15)
Measurements are made
automatically with the unit
determining all operations from the
beginning to the end. When the
light spot enters the alignment
mark, the measurement starts. The
unit determines the cause of
fluctuations in the measured values
and the measurement ends. If
AUTO PRINT is ON, a printout is
made, when measurements for the
left and right eyes are completed.
Continuous measurement mode
(→P.18)
Although measurements are
started automatically in the same
way as auto measurement mode,
measurements do not end
automatically but are made
continuously. Pressing the
measurement switch will stop
measurement momentarily.
Pressing it again will restart
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.
Auto start
↓
Keratometry
measurement
(One measurement/
center)
↓
Refraction
measurement
(5 measurements min.)
↓
Auto stop
↓
Auto print
(Only when AUTO
PRINT is ON)
Auto start
↓
The following set is
performed continuously:
Keratometry
measurement
(One measurement/
center)
↓
Refraction
measurement
(5 measurements)
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)
R–K Mode
Auto start
↓
Refraction
measurement
(5 measurements
min.)
↓
Auto stop
↓
Auto print
(Only when AUTO
PRINT is ON)
Auto start
↓
Refraction
measurement
(Continuous
measurements)
Measurement
switch ON
↓
Refraction
measurement
(One measurement)
When the measure-
ment 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)
↓
Auto stop
↓
Auto print
(Only when AUTO
PRINT is ON)
Auto start
↓
Keratometry
measurement
(One measurement/
center)
Measurement
switch ON
↓
Keratometry
measurement
(One measurement/
center)
When the measure-
ment switch is held
down, this is the
same as continuous
measurement mode.
Auto start
↓
Keratometry
measurement
(One measurement/
center)
Auto start
↓
Keratometry
measurement
(One measurement/
center and
periphery)
↓
Auto stop
↓
Auto print
(Only when AUTO
PRINT is ON)
Auto start
↓
Keratometry
measurement
(One measurement/
center and
periphery)
Measurement
switch ON
↓
Keratometry
measurement
(One measurement/
center and
periphery)
When the measure-
ment switch is held
down, this is the
same as continuous
measurement mode.
Auto start
↓
Keratometry
measurement
(One measurement/
center and
periphery)
Auto start
↓
Keratometry
measurement
(One measurement/
center and periphery)
↓
Refraction
measurement
(5 measurements min.)
↓
Auto stop
↓
Auto print
(Only when AUTO
PRINT is ON)
Auto start
↓
The following set is
performed continuously:
Keratometry
measurement
(One measurement/
center and periphery)
↓
Refraction
measurement
(5 measurements)
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
↓
The following set is
performed continuously:
Keratometry
measurement
(One measurement/
center and periphery)
↓
Quick refraction
measurement
(5 measurements)

15
3. Measurement Method
3-1 Auto Measurement Mode
1Press
QUICK
A-C-M /4
and set the measurement mode to
A
.
2Press
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.
3Show 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.
4Turn the chin rest height adjustment knob, and align the patient’s eyes with the height guide ring.
5Fit the patient's forehead to the forehead rest and rest the patient’s chin firmly on the chin rest.
dIf the chin is not firmly in place, accurate measurement is not possible.
6Move the joystick lever to position the measuring head so that
the patient’s eye is displayed on the screen. Once the patient’s
eye first appears on the screen, bring the image of the pupil to
the center of the screen. (You may measure either eye first).
Turn: Moves vertically.
Tilt to left/right:
Moves to left/right.
Tilt to back/forth:
Moves to back/forth.
For vertical direction:
Align the head height mark
with the height guide ring
located on the chin rest bar.
For lateral direction:
Align the edge of the sliding
seat with the target line on
the base.
Movement of the joystick lever
and the measuring head motion
The following operations allow
you to find the patient’s eye
easily

16
VD 12.0 / PD
R 00 / L 00
R 00 / L 00
R 00001
SC AA
H
R2 A2
RK
R1 A1
Alignment mark
Pupil image
Mire ring
VD 12.0 / PD
R 00 / L 00
R 00 / L 00
R 00001
H
RK
SC AA
R2 A2
R1 A1
Alignment mark
Mire ring
VD 12.0 / PD
R 00 / L 00
R 00 / L 00
R 00001
SC AA
H
R2 A2
RK
R1 A1
Pupil image
Alignment mark
Light spot
Light spot
Auto fogging mark
7Before putting the light spot inside the alignment mark, move the joystick lever back and forth to
focus the mire ring.
8Once 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.
9When 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.
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.)
Keratometry
measuring lights

17
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.
11 Move the unit left or right and perform steps 6through 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.)
■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.
R 00001
A
H
RK
R 01 / L 00
R1 9.12 A1 180 R2 9.12 A2 90
R OK
VD 12.0 / PD
R 05 / L 00
S – 3.25 C – 0.62 A159
R 05 / L 05
R2 9.12 A2 90
RK
R – 3.25 – 0.62 159 10
L
– 2.00 – 0.50 44
001/PD64
10
PRINTING
R2 7.63 A2 64
KR R1 7.80 A1 154
LR19.12 A1 180
PD values, representative
refraction values for the
left and right eyes and the
confidence values
Keratometry
measurement value

18
3-2 Continuous Measurement Mode
1Press
QUICK
A-C-M /4
and set the measurement mode to
C
.
2Press
R–K /1
and select the R–K mode.
3Measure the patient’s eyes using the same steps 3through 10 as given in “3-1 Auto Measurement
Mode”.
dIn this mode, measurement does not end automatically, rather it is continuous.
dBe 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.
4Press the measurement switch when you want to end measurement for a given eye.
(The alignment mark will blink and measurement will stop temporarily.)
5Measure the other eye in the same way.
6Press the
PRINT
key when you want to print out the measurement results. (→ P.21)

19
3. Measurement Method
3-3 Manual Measurement Mode
1Press
QUICK
A-C-M /4
and set the measurement mode to
M
.
2Press
R–K /1
and select the R–K mode.
3Position the measuring head versus the patient’s eye using the same steps 3through 8as given in
“3-1. Auto Measurement Mode”.
dIn this mode, Auto Fogging does not activate even when the light spot enters the alignment mark.
4If 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.
5Press the measurement switch when the OK mark (→ OK ←) appears.
Auto Fogging will activate at this point and the patient’s eye will be measured.
dBe 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.
6Measure the other eye in the same way.
7Press the
PRINT
key when you want to print out the measurement results. (→ P.21)
OK mark
VD 12.0 / PD
R 00 / L 00
R 00 / L 00
R 00001
SC AM
H
R2 A2
RK
R1 A1
OK