TRC-NW8 Instruction Manual Jan 2008

INTRODUCTION Thank you for purchasing the TOPCON TRC-NW8 NON-MYDRIATIC RETINAL CAMERA.

This instrument is used to observe and photograph the fundus of the eye. This instrument has the following features: • Photographs can be taken through pupils φ4.0mm or larger. (φ3.3mm or larger if small pupil diaphragm is on) • Auto focus function • Red-free photography with red-free filter (RF filter)

This manual outlines the TRC-NW8 NON-MYDRIATIC RETINAL CAMERA, including operating procedures, troubleshooting, maintenance and cleaning. Before using the instrument, carefully read the "DISPLAY FOR SAFE USE" and the "SAFETY CAUTIONS" to familiarize yourself with the features of the TRC-NW8 NONMYDRIATIC RETINAL CAMERA and use it efficiently and safely. Always keep this Instruction Manual at hand.

[Warning] Be careful not to hit the patient's eyes or nose with the instrument during operation. [The patient may be injured.] [Caution] This instrument must not be used for the following patients. • Patients who are hypersensitive to light • Patients who recently underwent photodynamic therapy (PDT) • Patients taking medication that causes photosensitivity. This symbol is applicable for EU member countries only. To avoid potential damage to the environment and possibly human health, this instrument should be disposed of (i) for EU member countries - in accordance with WEEE (Directive on Waste Electrical and Electronic Equipment), or (ii) for all other countries, in accordance with local disposal and recycling laws.

CLASS

IEC60601-1

0123

1

CAUTIONS FOR USE Important cautions Use this instrument carefully on the following patients. • Patients who have epidemic corneitis, conjunctivitis or any other infectious disease • Patients who are taking medications that cause light hypersensitivity.

Basic cautions Be careful not to let the patient touch this instrument. The patient's hand may be pinched by the movable part. Do not touch the focusing knob while in auto focus mode. You may be injured. When operating the chinrest switch, be careful not to pinch the patient's hand. The patient may be injured. To avoid electric shock, turn off the power switch when replacing the lamp. To avoid burns, do not replace the lamp with a new one immediately after it goes off because it is still very hot and can cause burns. To avoid injury caused by electric shock, do not open the cover. Ask your dealer for service. To avoid electric shock, turn off the power switch and unplug the power cord and then replace the lamp with a rated one.

Disposal When disposing of TRC-NW8 parts, follow the local regulations for disposal and recycling.

ENVIRONMENTAL CONDITIONS FOR USE Temperature : 10°C - 40°C Humidity : 30% - 75% (without dew condensation) Air pressure : 700hPa - 1060hPa

STORAGE, USAGE PERIOD AND OTHERS 1. Environmental conditions (without package) Temperature : 10°C - 40°C Humidity : 30% - 75% (without dew condensation) Air pressure : 700hPa - 1060hPa 2. When storing the instrument, ensure that the following conditions are met: (1) The instrument must not be splashed with water. (2) Store the instrument away from environments where air pressure, temperature, humidity, ventilation, sunlight, dust, salty/sulfurous air, etc. could cause damage. (3) Do not store or transport the instrument on a slanted or uneven surface or in an area where it is subject to vibrations or instability. (4) Do not store the instrument where chemicals are stored or gas is generated. 3. Normal life span of the instrument: 8 years from delivery providing regular maintenance is performed [TOPCON data]

2

ENVIRONMENTAL CONDITIONS FOR PACKAGING IN TRANSPORTATION Temperature : -20°C - 50°C Humidity : 10% - 95%

CHECKPOINTS FOR MAINTENANCE 1. Periodically inspect the instrument and its parts. 2. Before using the instrument again after a long period of inactivity, make sure that it operates safely and normally. 3. Be careful not to stain the objective lens with fingerprints, dirt, etc., as this will affect the quality of pictures that the instrument takes. 4. When the instrument is not in use, cap the objective lens and cover the instruments with the dust cover. 5. If the objective lens is stained, clean it according to "Cleaning the objective lens" on page 79 of this manual.

3

DISPLAY FOR SAFE USE To encourage safe and proper use and to prevent danger to the operator and others or potential damage to properties, important messages are put on the instrument body and inserted in the instruction manual. We suggest that everyone understand the meaning of the following displays, icons and text before reading the "SAFETY CAUTIONS" and observe all listed instructions.

DISPLAYS Display

Meaning

WARNING

Incorrect handling by ignoring this display may lead to an impending danger of death or serious injury.

CAUTION

Incorrect handling by ignoring this display may lead to personal injury or physical damage.

• Injury refers to hurt, cuts, bruises, electric shock, etc. which does not require hospitalization or extended medical treatment. • Physical damage refers to extensive damage to the building, nearby equipment and/or surrounding furniture.

ICONS Icon

Meaning Prohibition. Specific content is expressed with words or a picture near the icon. Mandatory Action Specific content is expressed with words or a picture near the icon. Caution Specific content is expressed with words or a picture near the icon.

4

SAFETY CAUTIONS WARNINGS Icon

Prevention item

Page

To avoid fire and electric shock in case of leakage, be sure to use a grounded outlet. Do not connect to outlets that are not grounded.

22

To avoid electric shock, do not attempt disassembling, rebuilding and/or repairs on your own. Ask your dealer for repairs.

62

Do not remove the covers from the main unit, chinrest unit or power supply unit except for the lamp house cover. You may receive an electric shock.

62

To avoid electric shock, unplug the power cord from the grounded outlet before removing the fuse cover. Do not connect the power cord to the grounded outlet with the fuse cover left unfixed.

75

To avoid fire in the event of an instrument malfunction, use only fuses that are fitted to the marked label at the side of the fuse holder.

75

To avoid fire and electric shock, install the instrument in a dry place free of water and other liquids.

-----

To avoid fire and electric shock, do not put cups or other containers with liquids near the instrument.

-----

To avoid electric shock, do not insert metal objects into any vents and/or slots.

-----

To avoid fire in the event of an instrument malfunction, immediately turn OFF the power switch " " and unplug the cable if you see smoke coming from the instrument, etc. Ask your dealer for service.

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CAUTION : Federal laws restricts this device to the sale by or on the order of a physician. WARNING : Handling the cord on this product or cords associated with accessories sold with this product, will expose you to lead, a chemical known to the State of California to cause birth detects or other reproductive harm. Wash hands after handling. This Product Contains Mercury in the backlighting of the LCD display. Prior to disposal remove of otherwise ensure that this is disposed of in accordance with Local,State and Federal Laws. This information is applicable in U.S.A only.

5

SAFETY CAUTIONS CAUTIONS Icon

6

Prevention item

Page

To prevent damage and injuries, do not install the instrument on an uneven, unsteady or sloping surface.

18, 70

To avoid electric shock, do not handle the plugs with wet fingers.

22

To avoid pain and discomfort to the patient and damage to the patient’s eye, do not brighten the illumination lamp more than necessary.

38

To avoid pain and discomfort to the patient and damage to the patient's eye, do not brighten the photography light more than necessary.

39

To avoid injury while moving the instrument, do not place your fingers into the gap between the instrument body and the power supply unit.

41

To avoid burns, allow lamp to cool before touching.

72

To avoid electric shock, do not touch the xenon lamp immediately after it flashes or burns out.

73

SAFETY CAUTIONS CAUTIONS Icon

Prevention item

Page

Before transporting this instrument, secure the fixing knob on the bottom to prevent movements.

18

This instrument should be carried by two persons. Carrying by one person may cause backache or injury. Holding at areas other than the bottom may also cause injury, as well as falling, thereby damaging the instrument.

18

To avoid electric shock, unplug the power cord from the outlet before assembling. Do not plug the power cord into the outlet before assembling the instrument.

18

To avoid injury to the patient's face and hands, be sure to operate the chinrest for height adjustment while directly watching the patient.

36

To avoid injury to the patient's eyes and nose while moving the instrument body, keep a safe distance between the patient and the objective lens.

41

To avoid injury by falling off, make sure that the digital camera is correctly installed.

70

To avoid electric shock, be sure to turn the power switch off and unplug the power cord before replacing the lamp.

72, 73

Always place and transport the instrument on a suitable instrument table.

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This instrument has been tested (with 100/120/230V) and found to comply with IEC60601-1-2: Ed.2.1: 2004. This instrument radiates radio frequency energy within standard and may affect other devices in the vicinity. If you have discovered that turning on/off the instrument affects other devices, we recommend you change its position, keep a proper distance from other devices, or plug it into a different outlet. Please consult your authorized dealer if you have any additional questions.

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7

USAGE AND MAINTENANCE Usage: • The TRC-NW8 NON-MYDRIATIC RETINAL CAMERA is an electric instrument for medical use. Use it accordingly.

USER MAINTENANCE To ensure the safety and performance of the instrument, all maintenance work, unless specified in this manual, shall only be conducted by trained service engineers. The following maintenance tasks may be done by the user. For details, see the relevant part of this manual.

Replacing lamps: The illumination lamp and xenon lamp may be replaced by the user. For details, see "Replacing the illumination lamp" on page 72 and "Replacing the xenon lamp" on page 73.

Replacing fuses: Fuses of the instrument body may be replaced by the user. For details, see "Changing the fuse" on page 75.

Cleaning the objective lens: The objective lens may be cleaned by the user. For details, see "Cleaning the objective lens" on page 79.

ESCAPE CLAUSES • TOPCON shall not take any responsibility for damage due to fire, earthquakes, actions by third persons and other accidents, or damage due to negligence and misuse by the user and any use under unusual conditions. • TOPCON shall not take any responsibility for damage derived from inability to properly use this instrument, such as loss of business profit and suspension of business. • TOPCON shall not take any responsibility for damage caused from using this instrument in a manner other than that described in this Instruction Manual. • Diagnoses made shall be the responsibility of pertaining doctors and TOPCON shall not take any responsibility for the results of such diagnoses.

8

WARNING DISPLAYS AND POSITIONS To ensure safety, this machine provides warning displays. Use the instrument correctly by observing the display instructions. If any of the following display labels are missing, contact your TOPCON dealer at the address listed on the back cover.

CAUTION Do not touch the focusing knob while in auto focus mode. You may be injured.

CAUTION Be careful not to hit the patient's eyes or nose with the instrument during operation.

CAUTION When operating the chinrest switch, be careful not to pinch the patient's hand. The patient may be injured.

CAUTION

y To avoid electric shock, turn off the power switch when replacing the lamp. y To avoid burns, do not replace the lamp with a new one immediately after it goes off because it is still very hot and can cause burns.

WARNING To avoid electric shock, turn off the power switch and unplug the power cord and then replace the lamp with a rated one.

WARNING To avoid injury caused by electric shock, do not open the cover. Ask your dealer for service.

9

CONTENTS INTRODUCTION .................................................................................................................1 CAUTIONS FOR USE ......................................................................................................... 2 ENVIRONMENTAL CONDITIONS FOR USE .....................................................................2 STORAGE, USAGE PERIOD AND OTHERS .....................................................................2 ENVIRONMENTAL CONDITIONS FOR PACKAGING IN TRANSPORTATION .................3 CHECKPOINTS FOR MAINTENANCE ............................................................................... 3 DISPLAY FOR SAFE USE .................................................................................................. 4 SAFETY CAUTIONS ...........................................................................................................5 USAGE AND MAINTENANCE .............................................................................................8 ESCAPE CLAUSES ............................................................................................................. 8 WARNING DISPLAYS AND POSITIONS ............................................................................9

NOMENCLATURE COMPONENT NAMES ...................................................................................................... 12 COMPOSITION OF PARTS THAT COME IN CONTACT WITH THE PATIENT ............... 12 CONTROL PANEL COMPONENTS .................................................................................. 13 COMPONENTS ON COLOR LCD MONITOR SCREEN ................................................... 15 STANDARD ACCESSORIES ............................................................................................ 17

PREPARATIONS ASSEMBLY PROCEDURE OF THE INSTRUMENT BODY .............................................. 18 INSTALLING THE DIGITAL CAMERA .............................................................................. 20 HOW TO CONNECT THE CABLES .................................................................................. 20 CONFIRMATION AFTER ASSEMBLY .............................................................................. 21 CONNECTING THE POWER CORD ................................................................................ 22 CONNECTING THE EXTERNAL DEVICE ........................................................................ 23 MENU SETTING ................................................................................................................ 24 SETTING THE RECORDING MEDIUM TO SAVE IMAGE ............................................... 30 RESET FROM POWER SAVE STATE .............................................................................. 34

BASIC OPERATIONS FLOW OF OPERATION .................................................................................................... 35 OTHER TYPES OF PHOTOGRAPHY ............................................................................... 35 PREPARATION FOR PHOTOGRAPHY ............................................................................ 36 COLOR PHOTOGRAPHY (CENTER) ............................................................................... 38 EXITING ............................................................................................................................. 46

OBJECTIVE OPERATIONS PERIPHERAL PHOTOGRAPHY ....................................................................................... 47 SMALL PUPIL PHOTOGRAPHY ....................................................................................... 51 RED-FREE PHOTOGRAPHY WITH RF FILTER .............................................................. 54 ANTERIOR SEGMENT PHOTOGRAPHY ......................................................................... 55 STEREO PHOTOGRAPHY ............................................................................................... 57 IMAGE PLAYBACK MODE ................................................................................................ 59

BEFORE REQUESTING SERVICE TROUBLESHOOTING ....................................................................................................... 61

SPECIFICATIONS & PERFORMANCE

10

SPECIFICATIONS ............................................................................................................. 64 ELECTROMAGNETIC COMPATIBILITY ........................................................................... 65 ELECTRIC RATING ........................................................................................................... 68 SYSTEM CLASSIFICATION .............................................................................................. 68 DIMENSIONS AND WEIGHT ............................................................................................ 69 PURPOSE OF USE ........................................................................................................... 69 OPERATION PRINCIPLE .................................................................................................. 69

MAINTENANCE DAILY CHECKUPS ............................................................................................................ 70 CLEANING ......................................................................................................................... 79

OPTIONAL ACCESSORIES EXTERNAL FIXATION TARGET EF-2 .............................................................................. 81

REFERENCE MATERIAL SHAPE OF PLUG .............................................................................................................. 82 SYMBOL ............................................................................................................................ 82 USABLE AUTOMATIC INSTRUMENT TABLE .................................................................. 82

RELATION BETWEEN SETTING OF ILLUMINATION/ FLASH LEVEL AND MAXIMUM RADIANCE ................................................... 83 INFORMATION ABOUT THE OPTICAL RADIATION HAZARD TO THE USER .............. 84

11

NOMENCLATURE COMPONENT NAMES Camera mount Connector

Main unit Diopter compensation lens selector Focusing knob

LED illuminator Color LCD monitor Photography switch

RF filter selector

Control lever

IR filter selector

Power lamp

Image quality adjustment switch

Base unit Base brake knob

Control panel

Fixing knob (for carrying)

Chinrest unit Forehead rest Objective lens

Canthus marker

Anterior segment fixation target Lamp house cover screw

Chinrest tissue pin

Lamp house cover

Chinrest

Base unit Fuse holder Power switch Power supply unit

Image terminal Image/data terminal Input/output terminal

COMPOSITION OF PARTS THAT COME IN CONTACT WITH THE PATIENT Forehead rest : Silicone rubber Chinrest : Acrylonitrile butadiene styrene resin Chinrest tissue pin : Polyamide resin

12 NOMENCLATURE

CONTROL PANEL COMPONENTS Stereo photography switch Menu switch

Split switch

ID input switch

Image playback switch

Illumination diaphragm selector switch (Upward cursor switch)

Flash level switch (-, reset, +) Illumination level switch (-, +)

Fixation target selector switch (clockwise) (Rightward cursor switch)

Chinrest switch (down, up)

Fixation target selector switch (reset) (ENTER switch) (PRINT switch) Fixation target selector switch (counterclockwise) (Leftward cursor switch)

AUTO switch (Downward cursor switch) (Image deletion switch)

Menu switch: P.24 Displays "MENU". Split switch: P.44 Turns on/off the split line. * (The function of the split switch can be changed by setting. For example, this switch can be set in order to turn on/off the internal fixation target.) Flash level switch: P.39 Adjusts the flash level according to the patient's eye condition. Illumination level switch: P.38 Adjusts the illumination level according to the patient's eye condition. Chinrest switch: P.37 Adjusts the chinrest up/down movement. ID input switch: P.36 Moves to the ID input screen. Image playback switch [Reading the image]: P.59 Reproduces the image stored in the set record media. (This switch function is invalidated by the setting on the external recording device and the instrument.) Illumination diaphragm selector switch: P.51 (Upward cursor switch): P.24, P.36 Used in small pupil photography. IN/OUT of the illumination diaphragm for small pupil (hereinafter, small pupil diaphragm) is done. (You can move the selection cursor upward when entering the menu and ID.)

13 NOMENCLATURE

AUTO switch: P.44 (Downward cursor switch): P.24, P.36 (Image deletion switch [Deleting the image]): P.60 Turns ON/OFF the auto shoot/auto focus/auto small pupil functions. (ON/OFF of each function can be set by "MENU".) (You can move the selection cursor downward when entering the menu and ID. Turns ON/ OFF to delete the reviewed photographic image.) Fixation target selector switch (counterclockwise): P.47 (Leftward cursor switch): P.36 Switches the position of the internal fixation target to guide the patient's eye to the periphery fixation point. (You can move the selection cursor leftward when entering the menu and ID.) Fixation target selector switch (clockwise): P.47 (Rightward cursor switch): P.36 Switches the position of the internal fixation target to guide the patient's eye to the periphery fixation point. (You can move the selection cursor rightward when entering the menu and ID.) Fixation target selector switch (reset): P.47 (ENTER switch): P.24, P.36 (PRINT switch): P. 59 Switches the current internal fixation target position to the first position. (Turn ON this switch to print the reviewed image. Chooses the selected item in "MENU".) Stereo photography switch: P.57 Shifts to the stereo photography mode. * For details, contact your dealer or TOPCON (see the back cover).

14 NOMENCLATURE

COMPONENTS ON COLOR LCD MONITOR SCREEN Monitor screen Patient ID

Right/left eye

Alignment bright spot

RF filter

AUTO display

Diopter compensation lens display USB memory recognition display External connection device recognition display

Xenon charging display Flash level compensation Small pupil diaphragm

Printer recognition display Split lines

* ( ) scale Fixation target position

Illumination level

* When the ( ) scale blinks in red, pull the base toward you (the operator) to the limit. For moving the instrument, refer to page 41. The AUTO display shows the auto function that is ON. For setting the auto functions, refer to "MENU SETTING" on page 24.

AUTO FSP

AUTO FSP

"F" is lit: The auto focus function is ON. (Set it to "OFF", and "F" is darkened.) "S" is lit: The auto shoot function is ON. (Set it to "OFF", and "S" is darkened.) "P" is lit: The auto small pupil function is ON. (Set it to "OFF", and "P" is darkened.) When the auto function, which has been set to "ON", is invalidated, a red oblique line is displayed. The left figure shows that the auto small pupil function is invalidated.

MENU screen Item to be set

Contents to be set

MENU

FOCUS Icon

FOCUS

ON

SHOOT

OFF

SMALL PUPIL FLASH

FIXATION

MEMORY

15 NOMENCLATURE

Preview screen Patient ID

Right/left eye RF filter

AUTO display Xenon charging display

Diopter compensation lens display

Flash level compensation Photographic image Small pupil diaphragm Printer recognition display Fixation target position

16 NOMENCLATURE

STANDARD ACCESSORIES Upon unpacking, make sure that all the following standard accessories are included. Numbers in ( ) are the quantities. Power cord (1)

TRC-NW8 Attached paper (1) NO

N-M

YD

RIAT

IC

RE TINA

L CA

MER A

TR

C-N

W8

Chinrest tissue paper (1)

Chinrest tissue pin (2)

Instruction manual (1)

Fuse (6)

IN NO ST

TR N-MYRDURCTION C- IATIC MAN NW RETINUAL AL 8 CA

ME RA

Spare parts case (1)

Dust cover (1)

Screw (4)

Rail cover (2)

17 NOMENCLATURE

PREPARATIONS ASSEMBLY PROCEDURE OF THE INSTRUMENT BODY

1

CAUTION

Before transporting this instrument, secure the fixing knob on the bottom to prevent movements.

CAUTION

This instrument should be carried by two persons. Carrying by one person may cause backache or injury. Holding at areas other than the bottom may also cause injury, as well as falling, thereby damaging the instrument.

CAUTION

To prevent damage and injuries, do not install the instrument on an uneven, unsteady or sloping surface.

CAUTION

To avoid electric shock, unplug the power cord from the outlet before assembling. Do not plug the power cord into the outlet before assembling the instrument.

NOTE

Since the upper part and lower part of the instrument body are merely connected to each other with the power cable, take them out together so they do not separate from each other.

NOTE

Always place the instrument in the center of the instrument table.

Take out the instrument body from the cardboard box and put it on the table. Before transporting, make sure that the back-and-forth and right-and-left movement of the base stops because of the fixing knob. If the base moves, turn the fixing knob to stop it. When carrying the instrument body, firmly hold it at the following specified positions.

Holding positions

2

Loosen the fixing knob.

18 PREPARATIONS

Fixing knob

Holding the instrument body

3

Slightly raise the control lever and take out the cushion from the lower part of the base in the arrow direction.

Sponge Control lever Styrofoam

Sponge

Cushion Sliding board (between the instrument body and base unit)

4 5

Wipe the sliding board with a cloth, etc. to remove dust. Remove the styrofoam from the transportation bracket (A) (the one on the left hand side as viewed from the chinrest side,), slide the base to the left and unscrew the transportation bracket (B).

Transportation bracket (A) Transportation bracket (B)

6 7

8

Slide the base to the right and unscrew the transportation bracket (A) with the screwdriver. Fasten the rail covers, using the small screws that are attached.

Affix the chinrest tissue paper with the chinrest tissue pin.

Chinrest tissue pin

Chinrest tissue paper

19 PREPARATIONS

INSTALLING THE DIGITAL CAMERA

1 2

3

Remove the cap from the digital camera to be installed. Align the positioning mark of the instrument with the mark on the digital camera's mount.

Turn the digital camera clockwise until a "click" is heard.

When taking out the digital camera from the instrument, turn the digital camera counterclockwise while pressing its lens lock release button. For some types of the digital cameras to be installed, a mount conversion adapter or tele converter is necessary.

HOW TO CONNECT THE CABLES Connect the cables for the digital camera, which come out of the instrument.

When connecting the cables, refer to the instruction manual of the digital camera. If you have a question about the digital camera, contact your dealer or TOPCON (listed on the back cover).

20 PREPARATIONS

CONFIRMATION AFTER ASSEMBLY

1 2

Make sure that the input voltage is within ±10% of the rated voltage for the instrument. If the input voltage exceeds this range, use a constant-voltage power supply (marketed: 400VA or more). Loosen the base brake knob, and move the control lever to verify that it moves smoothly. 1) Right-left movement 2) Back-forth movement 3) Up-down movement

Just after being unpacked, the right-left movement may be uneven. If so, move the control lever with force to its limits in all directions.

3

If the instrument body is slightly off level, finely adjust the height by properly turning the four adjusters. Do not extend the adjusters past 1cm.

Adjuster

21 PREPARATIONS

CONNECTING THE POWER CORD

1

2 3

WARNING

To avoid fire and electric shock in case of leakage, be sure to use a grounded outlet. Do not connect to outlets that are not grounded.

CAUTION

To avoid electric shock, do not handle the plugs with wet fingers.

Make sure that the

POWER SWITCH

of the instrument body is OFF (

).

Attach the power cord to the instrument body. Plug the power cord into a proper outlet with grounding. Refrain from using UPS (Uninterruptible Power Supply). The trouble caused by using UPS will not be guaranteed.

22 PREPARATIONS

CONNECTING THE EXTERNAL DEVICE This instrument can be connected to an image filing system such as IMAGEnet (commercial product), etc.

Image/data terminal Image filing system (commercial product) Digital printer (commercial product)* Image terminal Image filing system (commercial product)

Input/output terminal Recording device (commercial product) Data input device (commercial product) Ten key board (commercial product) Keyboard (commercial product) Mouse (commercial product)

* By connecting the digital printer applicable to Pict Bridge, direct print is done.

Connecting to IMAGEnet (commercial product), etc.

1

Connect one USB cable (commercial product) to the image/data terminal

.

Be sure to connect IMAGEnet (commercial product), etc. to the image/data terminal.

2

Connect the other end of the USB cable to IMAGEnet, etc. Use the external device complying with IEC60950/IEC60950-1 or UL60950/UL60950-1.

For details about connecting the external devices, contact your dealer or TOPCON (see the back cover). To increase the image transfer speed, connect IMAGEnet, etc. with two USB cables (commercial products). In this case, the photographed image is not displayed on the color LCD monitor. For details, contact your dealer or TOPCON (see the back cover). Do not take a picture before the external connection device recognition display appears on the color LCD monitor. When you want to change the date stored in the recording device, contact your dealer or TOPCON office (see the back cover). Before using the USB memory, make sure that it is not infected with the computer virus. Then, connect it. For the use of an image filing system such as IMAGEnet, etc., refer to the instruction manual of each system.

23 PREPARATIONS

MENU SETTING In menu setting, ON/OFF of the auto functions, the flash level and the fixation target can be set.

Preparations for menu setting

1 2

Check the power cord connections. For details about the connection, see "CONNECTING THE POWER CORD" on page 22. Turn the

ON (I).

POWER SWITCH

Displaying the menu screen

1 2

Make sure that the Monitor screen is displayed. Press the MENU SWITCH on the control panel. Make sure that "MENU" is displayed. MENU

The color of the selected icon is changed.

FOCUS SHOOT SMALL PUPIL FLASH

FIXATION

MEMORY

3 4

Press the changed.

DOWNWARD CURSOR SWITCH

Press the

ENTER SWITCH

Press the

24 PREPARATIONS

MENU SWITCH

UPWARD CURSOR SWITCH

, and the selected item is chose.

Returning to the Monitor screen

1

or

.

; the selected item is

Setting of auto focus Set the auto focus function ON/OFF. (When shipped, "ON" is set.) When auto focus is set to ON, focusing is automatically done when taking a picture.

1 2

On the "MENU" screen, make sure that "AUTO" is selected and press the Press the DOWNWARD CURSOR SWITCH or and then press the ENTER SWITCH .

UPWARD CURSOR SWITCH

ENTER SWITCH

.

to select "FOCUS"

MENU FOCUS

ON

SHOOT

OFF

SMALL PUPIL FLASH

FIXATION

MEMORY

3

Select "ON" or "OFF" with the DOWNWARD CURSOR SWITCH or and then press the ENTER SWITCH . The selected data is set.

UPWARD CURSOR SWITCH

MENU FOCUS

ON

SHOOT

OFF

SMALL PUPIL FLASH

FIXATION

MEMORY

25 PREPARATIONS

Setting of auto shoot Set the auto shoot function ON/OFF. (When shipped, "ON" is set.) The auto shoot mechanism works as follows: when the fitted alignment bright spot is put into ( ) in the focalized status, the instrument takes a picture automatically without pressing the photography switch.

1 2

On the "MENU" screen, make sure that "AUTO" is selected and press the Press the DOWNWARD CURSOR SWITCH or and then press the ENTER SWITCH .

UPWARD CURSOR SWITCH

ENTER SWITCH

to select "SHOOT"

MENU FOCUS

ON

SHOOT

OFF

SMALL PUPIL FLASH

FIXATION

MEMORY

3

Select "ON" or "OFF" with the DOWNWARD CURSOR SWITCH or and then press the ENTER SWITCH . The selected data is set. MENU FOCUS

ON

SHOOT

OFF

SMALL PUPIL FLASH

FIXATION

MEMORY

26 PREPARATIONS

.

UPWARD CURSOR SWITCH

Setting of auto small pupil Set the auto small pupil function ON/OFF. (When shipped, "ON" is set.) The auto small pupil mechanism works as follows: when the pupil diameter of the patient is too small to take a picture, the instrument automatically changes to the small pupil diaphragm.

1 2

On the "MENU" screen, make sure that "AUTO" is selected and press the Press the DOWNWARD CURSOR SWITCH or PUPIL" and then press the ENTER SWITCH .

UPWARD CURSOR SWITCH

ENTER SWITCH

.

to select "SMALL

MENU FOCUS

ON

SHOOT

OFF

SMALL PUPIL FLASH

FIXATION

MEMORY

3

Select "ON" or "OFF" with the DOWNWARD CURSOR SWITCH or and then press the ENTER SWITCH . The selected data is set.

UPWARD CURSOR SWITCH

MENU FOCUS

ON

SHOOT

OFF

SMALL PUPIL FLASH

FIXATION

MEMORY

27 PREPARATIONS

Switching of internal/external fixation targets (The external fixation target is an optional accessory.) You can change the internal/external fixation targets. When shipped, "INTERNAL" (internal fixation target) is set.

1

Select "FIXATION" on the "MENU" screen and press the

ENTER SWITCH

.

MENU INT / EXT TYPE MODE FLASH

PERIPHERAL DCF

FIXATION

MEMORY

2

Press the DOWNWARD CURSOR SWITCH or and then press the ENTER SWITCH .

UPWARD CURSOR SWITCH

to select "INT/EXT"

MENU INT / EXT

EXTERNAL

TYPE

INTERNAL

MODE FLASH

PERIPHERAL DCF

FIXATION

MEMORY

3

Press the DOWNWARD CURSOR SWITCH or UPWARD CURSOR SWITCH to select "INTERNAL" (internal fixation target) or "EXTERNAL" (external fixation target). Then, press the ENTER SWITCH . MENU INT / EXT

EXTERNAL

TYPE

INTERNAL

MODE FLASH

PERIPHERAL DCF

FIXATION

MEMORY

28 PREPARATIONS

Fixation target pattern You can select the fixation target pattern. When shipped, "8POINT" is set.

1

Move the cursor to "FIXATION" on the "MENU" screen, and press the

ENTER SWITCH

.

MENU INT / EXT TYPE MODE FLASH

PERIPHERAL DCF

FIXATION

MEMORY

2

Press the DOWNWARD CURSOR SWITCH or ERAL" and then press the ENTER SWITCH .

UPWARD CURSOR SWITCH

to select "PERIPH-

MENU

FLASH

FIXATION

INT / EXT

4A

TYPE

4B

MODE

5A

PERIPHERAL

5B

DCF

8POINT

FIXATION PATTERN

9POINT

MEMORY

3

Press the DOWNWARD CURSOR SWITCH or desired pattern from the following: "4A" (diagonal 4 positions), "4B" (vertical-horizontal 4 positions), "5A" (diagonal 4 positions + center), "5B" (vertical-horizontal positions + center), "8POINT" (8 positions), or "9POINT" (8 positions + center). Press the ENTER SWITCH .

UPWARD CURSOR SWITCH

and select the

MENU

FLASH

FIXATION

INT / EXT

4A

TYPE

4B

MODE

5A

PERIPHERAL

5B

DCF

8POINT

FIXATION PATTERN

9POINT

MEMORY

For setting and lighting the internal fixation target, refer to "MEMO" on page 48.

29 PREPARATIONS

SETTING THE RECORDING MEDIUM TO SAVE IMAGE Set the recording medium to save the photographed image.

When saving the image in the USB memory (commercial product), etc. It is not necessary to set some items on "MENU". Connect the recording device such as the USB memory (hereinafter, USB memory) to the input/output terminal. The instrument automatically recognizes the USB memory and the USB recognition mark is displayed on the color LCD monitor. The photographed image will be saved in the USB memory. When disconnecting the USB memory, follow the procedure shown below.

1

Select "MEMORY" on the "MENU" screen and press the

ENTER SWITCH

.

MENU

AUTO

SD CARD USB MEMORY

FLASH

FIXATION

MEMORY

2

Press the UPWARD CURSOR SWITCH or DOWNWARD CURSOR SWITCH MEMORY". Then, press the ENTER SWITCH . MENU

AUTO

SD CARD USB MEMORY

FLASH

FIXATION

MEMORY

30 PREPARATIONS

REMOVE

to select "USB

3

Make sure that "REMOVE" is selected and then press the

ENTER SWITCH

.

MENU

AUTO

SD CARD

REMOVE

USB MEMORY

FLASH

FIXATION

MEMORY

4

When the message "THE MEMORY CAN BE REMOVED." is displayed on the color LCD monitor, disconnect the USB memory from the input/output terminal. If the message "THE MEMORY CAN NOT BE STOPPED. PLEASE TRY AGAIN." is displayed, wait for a while and repeat the procedure from Step 1 again.

31 PREPARATIONS

When saving in the SD memory card (commercial product) When you insert the SD memory card (hereinafter, SD card) into the installed digital camera and want to save the photographed image in the SD card, set the items according to the following procedure.

1

Select "MEMORY" on the "MENU" screen and press the

ENTER SWITCH

.

MENU

AUTO

SD CARD USB MEMORY

FLASH

FIXATION

MEMORY

2

Press the UPWARD CURSOR SWITCH or CARD". Then, press the ENTER SWITCH .

DOWNWARD CURSOR SWITCH

to select "SD

MENU

AUTO

SD CARD

ON

USB MEMORY

OFF

FLASH

FIXATION

MEMORY

3

Press the UPWARD CURSOR SWITCH Then, press the ENTER SWITCH .

or

DOWNWARD CURSOR SWITCH

to select "ON".

MENU

AUTO

SD CARD

ON

USB MEMORY

OFF

FLASH

FIXATION

MEMORY

In some type of the digital camera to be installed, the SD card cannot be used.

32 PREPARATIONS

Menu functions list You can also change the set data for other items in the same way as setting of the auto functions. The settable menus are shown below. Setting of the AUTO functions (AUTO) Contents

Initial setting

FOCUS

Item

ON/OFF

ON

Select ON/OFF of auto focus.

Explanation

SHOOT

ON/OFF

ON

Select ON/OFF of auto shoot.

SMALL PUPIL

ON/OFF

ON

Select ON/OFF of auto small pupil.

Setting of the flash level (FLASH) Item

Contents

Initial setting

Explanation

COLOR BASE LVL

-4 to +4

0

Set the reference value of flash level (in color photography). When you set "0", the reference value of flash level is 9.4W·s.

GREEN BASE LVL

-4 to +4

0

Set the reference value of flash level (in redfree photography). When you set "0", the reference value of flash level is 27W·s.

Setting of the internal fixation target (FIXATION) Item

Contents

Initial setting

Explanation

INT/EXT

INTERNAL EXTERNAL

INTERNAL

Select the internal or external fixation target.

TYPE

PERIPHERAL DCF

PERIPHERAL

When using the internal fixation target, select whether it should be used as the peripheral fixation target or DCF.

* MODE

DEFAULT CUSTOM

DEFAULT

To light up the LED when using DCF, select "Default setting" or "Custom setting".

PERIPHERAL

4A/4B/5A/5B /8POINT /9POINT

8POINT

Select the peripheral fixation target pattern. 4A (diagonal 4 positions) 4B (vertical-horizontal 4 positions) 5A (diagonal 4 positions + center) 5B (vertical-horizontal positions + center) 8POINT (8 positions) 9POINT (8 positions + center)

DCF

P2/P3

P3

Select the DCF pattern. P2 (C: center, D: center of optic disc) P3 (C: center, D: center of optic disc, F: center of macula)

* When "DEFAULT" is set, "Center", "Center of optic disc" or "Center of macula" is lit in the DCF mode. For details, refer to page 48. When "CUSTOM" is set, the optional point is lit in the DCF mode. But, when shipped, the instrument is set so that the same point as "DEFAULT" may be lit. When you want to change the lighting point for "CUSTOM", contact your dealer or TOPCON office (see the back cover).

33 PREPARATIONS

Setting of the recording medium to save image (MEMORY) Item

Contents

SD CARD

ON OFF

USB MEMORY

REMOVE

Initial setting OFF

Explanation Select "ON" to save the photographed image in SD CARD. Select "OFF" not to save the photographed image in it.

-----

Select "REMOVE" to remove the USB memory from the instrument.

RESET FROM POWER SAVE STATE This machine adopts the power save method for power saving. When the instrument body is not operated within a set time, the power save function stops power supply to the monitor, CCD camera, illumination light source and photography light source. When power save sets in, the power lamp on the control panel flickers and the monitor screen goes off.

1

Press the PHOTOGRAPHY SWITCH . The color LCD monitor is displayed and ready for photography. When shipped, the power save set time is 10 minutes. To change the set time, contact your dealer or TOPCON (see the back cover).

34 PREPARATIONS

BASIC OPERATIONS FLOW OF OPERATION Photography procedure explained in "COLOR PHOTOGRAPHY (CENTER)"

Turning on the power (P.36)

Setting the patient (P.36 - P.37)

Setting the illumination level (P.38)

Setting the flash level (P.39)

Changing the diopter compensation lens (P.40)

Centering and photography (P.41 - P.45)

Small pupil photography (P.51)

When the patient has small pupil

Finish procedure (P.46)

OTHER TYPES OF PHOTOGRAPHY • • • •

Peripheral photography (P.47) Red-free photography with RF filter (P.54) Anterior segment photography (P.55 - P.56) Stereo photography (P.57 - P.58)

35 BASIC OPERATIONS

PREPARATION FOR PHOTOGRAPHY Applying the power supply

1 2 3 4

Carefully check the power cord connection. For details about the connection, see "CONNECTING THE POWER CORD" on page 22. Turn on any external connection device. Turn ON (

) the

POWER SWITCH

of the instrument.

Make sure that the title screen and the Monitor screen are displayed.

Patient setting

1 2

WARNING

To avoid injury to the patient's face and hands, be sure to operate the chinrest for height adjustment while directly watching the patient.

NOTE

If the patient wears glasses or contact lenses, remove them first.

NOTE

To ensure correct imaging, adjust the table height so the patient has his/her chin placed centrally on the chinrest.

Make sure the main Monitor screen is on. Press the

ID INPUT SWITCH

, and the ID number input screen appears. ID number display unit

Ins key: Each time you press this key, a space is inserted into the selected place and the characters after it are moved rightward. Del key: Each time you press this key, the character at the selected place is deleted and the characters after it are moved leftward. Character selection unit

3 4

Move to the character to be inputted with the cursor switches of the instrument. Press the

ENTER SWITCH

of the instrument to select the character.

The cursor character in the ID number display unit is changed to the selected character. Then, the cursor moves rightward. To move the cursor in the ID number display unit leftward, select "Back" in the character selection unit. To move it rightward, select "Forward".

5

Repeat Step 3 - 4 to input all the digits. Connect the mouse to the input/output terminal, and the mouse pointer is displayed only when inputting ID. Fit the mouse pointer to a desired character and click the left button of the mouse. The cursor character in the ID number display unit is changed to the selected character. Then, the cursor moves rightward.

36 BASIC OPERATIONS

6

Select "Set". The inputted ID is validated and the system exists from the input screen If you press the

ID INPUT SWITCH

again, the inputted ID is canceled.

It is possible to take a picture even if the ID is not inputted.

7

Make sure that the IR filter selector is on.

IR filter selector being pushed in

N

8 9

10

Seat patient comfortably. Adjust the table height or chair height so the patient has his/her chin placed centrally on the chinrest.

Adjust the chinrest height with the CHINREST SWITCH so the outside corner of the patient's eye is level with the Canthus marker on the chinrest post.

Canthus marker

The chinrest moves up/down while the

CHINREST SWITCH

is pressed.

37 BASIC OPERATIONS

COLOR PHOTOGRAPHY (CENTER) Setting the illumination level

CAUTION

To avoid pain and discomfort to the patient and damage to the patient's eye, do not brighten the illumination lamp more than necessary.

Set the illumination level using the ILLUMINATION LEVEL SWITCH . You can verify the current level using the illumination level display on the color LCD monitor.

AUTO FSP

Illumination level

Normally the illumination level has five steps. When the instrument is first turned on, the illumination level is set to level 3.

38 BASIC OPERATIONS

Setting the flash level

CAUTION

To avoid pain and discomfort to the patient and damage to the patient's eye, do not brighten the photography light more than necessary.

Set the flash level using the FLASH LEVEL SWITCH . The compensation value can be checked with the flash level compensation display on the color LCD monitor.

AUTO FSP

Flash level compensation display

+1

The flash level can be compensated in four steps in both the (+) and (-) directions from the reference value. When the flash level is the reference value, no compensation value is displayed. When the instrument is first turned on, the flash level is set to the reference value. You can adjust the reference value of the flash level in four steps in both (+) and (-) directions. The flash level display can also display the light intensity level (unit: W·s) in addition to the compensation value. For details about the flash level setting, contact your dealer or TOPCON (see the back cover). When the flash level compensation display is changed to the higher level by one step, the flash level is increased by approx. 20%.

39 BASIC OPERATIONS

Changing the diopter compensation lens Pull out the diopter compensation lens selector and change the diopter compensation lens for the patient's eye.

On a highly myopic patient, pull out the diopter compensation lens selector by one step and set it to (-) myopia. On a highly hyperopic patient, pull out the diopter compensation lens selector by two steps and set it to (+) hyperopia. Compensation range: 0 : -13 to +12D - : -33 to -12D + : +9 to +40D When the diopter compensation lens is set to any other value except "0", the split lines disappear. The following indication instructs to insert the diopter compensation lens. blinks: Set the diopter compensation lens to the "-" position. blinks: Set the diopter compensation lens to the "+" position. When you have inserted the diopter compensation lens, the icon status is changed, from "blinking" to "lighting".

40 BASIC OPERATIONS

Centering and photography

CAUTION

To avoid injury while moving the instrument, do not place your fingers into the gap between the instrument body and the power supply unit.

CAUTION

To avoid injury to the patient's eyes and nose while moving the instrument body, keep a safe distance between the patient and the objective lens.

The centering operation is done with the control lever. Centering the instrument body with the control lever • Fine movements of the base, back and forth and right and left, are done by tilting the control lever. Before performing this operation, free the base by turning the base brake knob to the left. To lock the base, turn the base brake knob right.

Operating the control lever (in all directions)

• To move the instrument body up/down, turn the control lever right for upward movement, and left for downward movement. The vertical position of the instrument body can be checked with the vertical position mark.

Operating the control lever (in a vertical direction)

Vertical position mark

41 BASIC OPERATIONS

1 2

Hold the control lever and pull the instrument backwards toward the operator. As the internal fixation target flickers, instruct the patient to look at the fixation target in the center. Observe the anterior segment image on the color LCD monitor. Move the instrument body using the control lever until you get the patient's eye centered in the color LCD monitor.

AUTO FSP

Hold the control lever perpendicularly, which facilitates centering on the fundus.

3

On the color LCD monitor, bring the ( ) scale towards the patient's pupil, and make sure that the pupil is larger than the ( ) scale. Comparison of the ( ) scale and the pupil tells you whether the pupil is large enough for retinal photography. The following pictures are provided as a reference.

Well dilated.

42 BASIC OPERATIONS

Narrowly dilated for photography.

Pupil diameter is too small: darken the room and further dilate the pupil. If the pupil diameter is still smaller than the ( ) scale, use the small pupil mode (P.51).

4

Slowly bring the instrument closer to the patient; the retina image will appear on the color LCD monitor.

AUTO FSP

5 6

Instruct the patient to look at the green light (internal fixation target). While watching the image on the color LCD monitor, adjust the brightness of the image using the ILLUMINATION LEVEL SWITCH . For details about the illumination level setting, see page 38.

7

Bring the instrument even closer to the patient; and two bright spots for the working distance alignment become visible. Alignment bright spots AUTO FSP

Split lines

When the auto focus function is ON, the instrument changes the split lines into one line. At this time, the fundus is almost in focus. The auto focus mechanism does not work for ocular pathology (e.g. strong cataract), myopia and hyperopia (beyond -13 to +12D), etc. from time to time. When the auto focus function is OFF, operate the focusing knob to change the split lines into one line on the color LCD monitor.

8

Operate the control lever until the two alignment bright spots are changed to one spot.

AUTO FSP

43 BASIC OPERATIONS

When the patient's eye is beyond -13 to +12D, the instruction to insert the diopter compensation lens appears on the color LCD monitor screen. At this time, change the diopter compensation lens. Refer to "Changing the diopter compensation lens" on page 40. Since the split lines are off when the diopter compensation lens is anything other than (0), turn the focusing knob so that the fundus image is clearly visible on the color LCD monitor. At the same time all the automatic functions are invalidated.

9

Operate the control lever and move the instrument body to bring the bright spot of the color LCD monitor into the ( ) scale.

AUTO FSP

10

When the positional relation between the instrument body and the patient's eye is proper for photography, the instrument automatically takes a picture. When the auto shoot function is OFF, the instrument does not take a picture automatically. Check the bright spot on the color LCD monitor and press the PHOTOGRAPHY SWITCH to take a picture. Use the AUTO SWITCH to turn ON/OFF all the auto functions, which have been set to "ON" in "MENU", at the same time. Press the AUTO SWITCH to turn OFF the auto functions, and the AUTO display disappears on the color LCD monitor. If the split lines cannot be seen, check if dilation is sufficient or if the eye is obstructed by eyelashes or the eyelid, interrupting the light. You can remove the split lines from the Monitor screen if they are not necessary. Press the SPLIT SWITCH to remove the split lines from the Monitor screen. Press the SPLIT SWITCH again to display the split lines on the Monitor screen. When the split lines are erased on the Monitor screen, the auto focus and auto shoot functions do not work. If the patient blinks when taking a picture, the blink detection function works to stop photography.

44 BASIC OPERATIONS

When the xenon charging display flickers on the color LCD monitor, photography is not possible even by pressing the PHOTOGRAPHY SWITCH . Wait until the xenon charging display turns on before you attempt to take the next image.

AUTO FSP

Xenon charging display

11

The captured image is stored in the external recording device and displayed on the color LCD monitor.

If the light intensity of the image is insufficient, compensate for it by pressing the FLASH LEVEL SWITCH , and repeat the centering and photography procedure. When connecting to IMAGEnet (commercial product), etc. with two USB cables, the preview screen is not indicated.

12

To return to the Monitor screen from the photographed image on the color LCD monitor, press the PHOTOGRAPHY SWITCH again.

45 BASIC OPERATIONS

EXITING

1 2 3

Turn OFF(O) the device.

POWER SWITCH

on the instrument body and the external recording

While operating the control lever, move the instrument body so that it comes just above the base. To prevent the base from moving suddenly, turn the base brake knob to the right to lock the base. For the next capture, turn the control lever and move the body to the center position. The vertical center position of the instrument can be checked with the vertical position mark. When you are not going to use the instrument for a long period of time, remove the power cords of the instrument body and external recording device from the power outlets, and remove all cords connecting the instrument to the external capture device. This instrument adopts the power save method (P.34). If you are going to use the instrument after a short pause period, it is recommended to use it without turning off the POWER SWITCH .

46 BASIC OPERATIONS

OBJECTIVE OPERATIONS PERIPHERAL PHOTOGRAPHY Setting the picture position • When the fixation target mode is set at "PERIPHERAL" (When shipped, "PERIPHERAL" is set.): To set the periphery, use the FIXATION TARGET SELECTOR SWITCH .

FIXATION TARGET SELECTOR SWITCH (RESET)

FIXATION TARGET SELECTOR SWITCH (CLOCKWISE)

FIXATION TARGET SELECTOR SWITCH (COUNTERCLOCKWISE)

Press the FIXATION TARGET SELECTOR SWITCH (COUNTERCLOCKWISE) , and the peripheral photography mode is accessed. Each time you press the FIXATION TARGET SELECTOR SWITCH (COUNTERCLOCKWISE) , the fixation position moves one by one in the order (numerical order) of Fig. A. Press the FIXATION TARGET SELECTOR SWITCH (CLOCKWISE) at any position except the center position. The position moves reversely (reversed order). Press the FIXATION TARGET SELECTOR SWITCH (CLOCKWISE) at the center position. The position moves in the order (numerical order) of Fig. B. Press the FIXATION TARGET SELECTOR SWITCH (CLOCKWISE) , and the peripheral photography mode is accessed. Each time you press the FIXATION TARGET SELECTOR SWITCH (CLOCKWISE) , the fixation position moves one by one in the order (numerical order) of Fig. B. Press the FIXATION TARGET SELECTOR SWITCH (COUNTERCLOCKWISE) at any position except the center position. The position moves reversely (reversed order). Press the FIXATION TARGET SELECTOR SWITCH (COUNTERCLOCKWISE) at the center position. The position moves in the order (numerical order) of Fig. A. Press the FIXATION TARGET SELECTOR SWITCH (RESET) , and the fixation is reset at the normal position (not the optical axis center). 2

A

2

B 9

3

8

4

3

9

4

8

1 5

1

7

5

7

6

6

Number of frame is shown in the fixation display position. The 1 position shown above is assigned to the optical axis center and is used for photographing around the macula segment.

47 OBJECTIVE OPERATIONS

The following figure and table show the fixation target pattern and the internal fixation lighting point corresponding to it. 2 Fixation target pattern

9

3

8

4 1 5

7

Lighting point

4A

3

5

7

9

4B

2

4

6

8

5A

1

3

5

7

9

5B

1

2

4

6

8

8POINT

2

3

4

5

6

7

8

9

9POINT

1

2

3

4

5

6

7

8

9

6

For setting the fixation target pattern, refer to "Fixation target pattern" on page 29. When you want to set the fixation target mode to "DCF", select "FIXATION" on the "MENU" screen and next "TYPE". Then, select "DCF". • When the fixation target mode is set at "DCF": To set the periphery, each time you press the

or , the setting changes from "D" (center of

FIXATION TARGET SELECTOR SWITCH (CLOCKWISE)

FIXATION TARGET SELECTOR SWITCH (COUNTERCLOCKWISE)

optic disc) to "C" (center) alternatively. The above explains the case in which "P2" is set for "PERIPHERAL". In addition to "P2", it is possible to set "P3" (D: center of optic disc, C: center, F: center of macula). To set it, select "FIXATION" on the "MENU" screen and next "DCF". Then, select "P3". When "P3" is set, the setting changes in the following order: "C" (center) → "D" (center of optic disc) → "F" (center of macula). Fixation position display (at right eye)

Fixation position display (at left eye)

Number of frame is shown in the fixation display position.

48 OBJECTIVE OPERATIONS

Centering and photography The centering operation is done with the control lever. For details about the movement/adjustment of the instrument body with the control lever, see the "MEMO" on page 41.

1

Hold the control lever and pull the instrument backwards toward the operator. As the anterior segment fixation target flickers, instruct the patient to look at the fixation target. Observe the anterior segment image on the color LCD monitor.

Anterior segment fixation target (flickering points corresponding to periphery setting)

2

Using the control lever, move the instrument body in all directions to get the patient's eye in the center of the color LCD monitor.

AUTO FSP

3

On the color LCD monitor, bring the ( ) scale to the patient's pupil, and make sure that the pupil is larger than the ( ) scale. For details about dilation, see the "MEMO" on page 42.

4 5

Slowly bring the instrument closer to the patient; the fundus image appears on the color LCD monitor. In this instance, the ( ) scale on the color LCD monitor moves to an alignment position corresponding to the picture position. At the same time, the anterior segment fixation target is changed to the internal fixation target.

AUTO FSP

0 0 0 0 0 0 0 0 0

49 OBJECTIVE OPERATIONS