Canon CX-1 User Manual

Download

Page 1

Digital Retinal Camera

CX-1

Operation Manual

Before using the instrument, be sure to read this manual thoroughly.

Keep the manual where it is easily accessible.

Page 2

PLEASE NOTE

1. Please contact a Canon representative or distributor to have the instruments installed.

2. Use the computer, monitor, and other equipment that conforms to the system standard IEC 60601-1/ UL 60601-1 or IEC 60950-1/UL 60950-1 for the Digital Retinal Camera CX-1. Be sure that the entire system conform to IEC 60601-1-1/UL 60601-1-1. Be sure to also use an isolation transformer conforming to IEC 60601-1/UL 60601-1 when a computer or monitor conforming to IEC 60950-1/UL 60950-1 is used. For details, consult a Canon representative or distributor.

3. To maintain compliance to IEC 60601-1-2, it is recommended that the computer, monitor, or other equipment configured with the CX-1 be evaluated to IEC 60601-1-2 or FCC Part15 Subpart B Class B and CISPR 24.

4. The user is responsible for the use and maintenance of the product. We suggest that a member of the user’s staff be designated as being in charge of maintenance so as to ensure that the product is kept in a safe and good condition. Also, medical products must be used only by a qualified person.

5. This product may malfunction due to electromagnetic waves caused by cellular phones, transceivers, radiocontrolled toys, etc. Be sure to avoid having objects such as these, which affect this product, brought near the product.

6. Disposal of this product in an unlawful manner may have a negative impact on health and on the environment. When disposing of this product, therefore, be absolutely sure to follow the procedure which is in conformity with the laws and regulations applicable in your area.

7. In no event will Canon be liable for direct or indirect consequential damage arising out of the use of this product. Canon will not be liable for loss of image data due to any reason.

8. Reading of image and storage of data must be performed in accordance with the law of the country where the product is being used. Also, the user is responsible for maintaining the privacy of image data.

9. The power cable supplied is designed to be used solely with this camera. Do not use it for any other products.

10.Canon reserves the right to change the specifications, configuration and appearance of the product without prior notice.

European Union (and EEA*) only.

This symbol indicates that this product is not to be disposed of with your household waste, according to the WEEE Directive (2002/96/EC) and your national law. This product should be handed over to a designated collection point, e.g., on an authorized one-for-one basis when you buy a new similar product or to an authorized collection site for recycling waste electrical and electronic equipment (EEE). Improper handling of this type of waste could have a possible negative impact on the environment and human health due to potentially hazardous substances that are generally associated with EEE. At the same time, your cooperation in the correct disposal of this product will contribute to the effective usage of natural resources. For more information about where you can drop off your waste equipment for recycling, please contact your local city office, waste authority, approved WEEE scheme or your household waste disposal service. For more information regarding return and recycling of WEEE products, please visit www.canon-europe.com/environment * EEA : Norway, Iceland and Liechtenstein

For California, USA Only

Included battery contains Perchlorate Material—Special handling may apply. See http://www.dtsc.ca.gov/hazardouswaste/perchlorate/

for details.

Page 3

Safety Information

Regulations

This instrument conforms to IEC 60601-1-2:2001.

For U.S.A. and Canada

• When the CX-1 is going to be operated at a voltage of 240V in USA or Canada, be sure to connect the instrument to a center tapped voltage source.

• This instrument is a CLASS I EQUIPMENT according to UL 60601-1 and CAN/CSA C22.2 No. 601.1.

MEDICAL EQUIPMENT WITH RESPECT TO ELECTRICAL SHOCK, FIRE AND MECHANICAL HAZARDS ONLY IN ACCORDANCE WITH UL 60601-1 and CAN / CSA C22.2 No. 601.1 41C4

• Grounding reliability can only be achieved when the equipment is connected to an equivalent receptacle marked “Hospital Only” or “Hospital Grade”.

• The following mark indicates that the instrument is a Type B Applied Parts.

• The degree of protection against ingress of water is IPX0.

• This equipment is not suitable for use in the presence of a flammable anaesthetic mixture with air or with oxygen or nitrous oxide.

• The mode of operation is Continuous Operation.

For EU Countries

• The following mark shows compliance of the instrument with Directive 93/42/EEC.

• This instrument is a CLASS I EQUIPMENT according to EN 60601-1.

• The following mark indicates that the instrument is a Type B Applied Parts according to EN 60601-1.

• The degree of protection against ingress of water is IPX0.

• This equipment is not suitable for use in the presence of a flammable anaesthetic mixture with air or with oxygen or nitrous oxide.

• The mode of operation is Continuous Operation.

Für Deutschland

• Während des Betriebs liegt der Schalldruckpegel dieses Instruments bei 70 dB(A) oder weniger gemäß ISO 7779.

(1)

Page 4

Safety Information

General Safety Information

Follow the safety instructions in this manual and all warnings and cautions printed on the warning labels. Ignoring such cautions or warnings while handling the product may result in injury or accident. Be sure to read and fully understand the manual before using this product. Keep this manual for future reference.

Meaning of Caution Signs

To protect the safety of users and others and to prevent accidents, this operation manual uses the symbols and text shown below in warnings and cautions. Read the meanings of these caution signs and the

Precautions (see page (3))

, and follow the safety instructions.

Safety

WARNING

CAUTION

NOTE

This indicates a potentially hazardous situation which, if not heeded, could result in death or serious injury to you or others.

This indicates hazardous situation which, if not heeded, may result in minor or moderate injury to you or others, or may result in machine damage.

This is used to emphasize essential information. Be sure to read this information to avoid incorrect operation.

(2)

Page 5

Safety Precautions

Be sure to follow the safety instructions below to ensure correct operation of the instrument.

Installation and Environment of Use

Do not use or store the instrument near any flammable chemicals such as alcohol, thinner, benzine, etc. If chemicals are spilled or evaporate, it may result in fire or

WARNING

CAUTION

electric shock through contact with electric parts inside the instruments. Also, some disinfectants are flammable. Be sure to take care when using them.

Do not use or store the instrument in a location with the conditions listed below. Otherwise, it may result in failure or malfunction, fall or cause fire or injury.

• Close to facilities where water is used.

• Where it will be exposed to direct sunlight.

• Close to air-conditioner or ventilation equipment.

• Close to heat source such as a heater.

• Prone to vibration.

• Insecure place.

• Dusty environment.

• Saline or sulfurous environment.

• High temperature or humidity.

• Freezing or condensation.

Safety Information

CAUTION

Installation Operation

WARNING

Power Supply

WARNING

Do not cover the vent holes on the cover. Otherwise, the temperature in the instrument may rise and cause fire.

Place the instrument on a firm table. Do not place it extremely near the edge of the table in order to avoid damage or injury due to falling.

Do not connect the instrument with anything other than specified. Otherwise, it may result in fire or electric shock. Also, when other equipment is going to be connected to the instrument using the connector for interface, be sure to check after the connection that leakage current is within the tolerable value. For details, please contact a Canon representative or distributor.

Only operate the instrument with the type of power supply indicated on the rating label. Otherwise, it may result in fire or electric shock.

Be sure to turn OFF the power before plugging or unplugging the cables as indicated

WARNING

in this manual. Also, do not handle it with wet hands. Otherwise, you may get an electric shock that may result in death or serious injury.

Securely plug in the power cable into the AC outlet. If contact failure occurs, or if dust or metal object comes in contact with the exposed metal prong of the plug, fire or electric shock may result.

(3)

Page 6

Safety Information

! ! !

Power Supply

WARNING

Be sure to hold the plug to disconnect the power cable. If you pull the cable, the core wire may be damaged, resulting in fire or electric shock.

Do not cut or process the cables. Also, do not place anything heavy, including the instrument on it, step on it, pull it, bend it, or bundle it. Otherwise, the cable may be damaged, which may result in fire or electric shock.

WARNING

CAUTION

Handling

WARNING

Do not get the power for more than one instrument from the same AC outlet. Otherwise, it may result in fire or electric shock.

Before connecting or disconnecting the cables, be sure to hold the instrument firmly in order to ensure safety. Otherwise, the main unit may fall over, possibly causing injury.

The instrument is shipped with a grounding type (three-core) power cable. To reduce the risk of electric shock, always plug the cable into a grounded power outlet.

To make it easy to disconnect the plug at any time, avoid putting any obstacles near the outlet.

Never disassemble or modify the product as it may result in fire or electric shock. Also, since the instrument incorporates high-voltage parts that may cause electric shocks and other hazardous parts, touching them may cause death or serious injury.

Do not place anything on top of the instrument. Otherwise, the object may fall and cause injury. Also, if metal objects such as needle or clip falls into the instrument, or if liquid is spilled, it may result in fire or electric shock.

WARNING

CAUTION

When the instrument is going to be carried, be sure to tighten the stage unit lock, hold the carrying indentations at the left and right of the bottom panel and hold the instrument horizontally. Do not hold it by the digital camera or the face rest poles or other parts, as they may come off and result in injury.

Do not hit or drop the instrument. The instrument may be damaged if it receives a strong jolt, which may result in fire or electric shock if the instrument is used without it being repaired.

Wipe the forehead rest with ethanol or glutaraldehyde solution to disinfect them each time a different patient uses the instrument in order to prevent infection. Please consult a specialist for the procedure for disinfection. The forehead rest can be damaged if using a disinfectant other than those above or if another disinfectant is added to ethanol. Please consult a specialist in this case as well.

(4)

Page 7

Handling

Safety Information

CAUTION

To ensure cleanliness, replace the chin rest paper whenever changing patients.

When adjusting the forward position of the main unit, be sure to move the main unit slowly toward the patient while looking from the side of the patient, so as to prevent accidental contact of the objective lens with the patient.

Do not place your hand or fingers between the stage and base. Also, ensure that the patient does not place his/her hand or fingers there either. Otherwise, fingers may be hurt.

When the instrument is not going to be used, turn OFF the power. Also, unplug the power cable from the AC outlet when it is not going to be used for a long time.

When Problem Occurs

Should any of the following occur, immediately turn OFF the power of each instrument, unplug the power cable from the AC outlet, and contact a Canon representative or distributor.

WARNING

• When there is smoke, an odd smell or abnormal sound.

• When liquid has been spilled into the instrument or a metal object has entered

• When the instrument has been dropped and it is damaged.

through an opening.

Maintenance and Inspection

WARNING

CAUTION

For safety reasons, be sure to turn OFF the power when the inspections indicated in this manual are going to be performed. Otherwise, it may result in electric shock.

When the instrument is going to be cleaned, be sure to turn OFF the power, and unplug the power cable from the AC outlet. Never use alcohol, benzine, thinner or any other flammable cleaning agents. Otherwise, fire or electric shock may result.

Clean the plug of the power cable periodically by unplugging it from the AC outlet and removing dust or dirt from the plug, its periphery and AC outlet with a dry cloth. If the cable is kept plugged in for a long time in a dusty, humid or sooty place, dust around the plug will attract moisture, and this could cause insulation failure which could result in a fire.

The instrument must be repaired by a qualified engineer only. If it is not repaired properly, it may cause fire, electric shock, or accident.

For safety reasons, be sure to inspect the instrument before using it.

(5)

Page 8

Safety Information

System Use

WARNING

CAUTION

Do not place multiple portable socket-outlets on the floor. Otherwise, it may result in fire or electric shock.

Do not connect an additional multiple portable socket-outlet or extension cord to the system. Otherwise, it may result in fire or electric shock.

Do not connect instruments which are not specified as part of the system. Otherwise, it may result in fire or electric shock.

For the system, use a power transformer of 1000 VA of the maximum permitted load. Otherwise, it may result in fire or electric shock.

Use multiple portable socket-outlets only for supplying power to equipment which is intended to form part of the system. Otherwise, it may result in fire or electric shock.

Do not connect non-medical electrical equipment which has been supplied as a part of the system to any power socket other than the multiple socket-outlets for the system. Otherwise, it may result in electric shock.

Do not connect any electrical equipment which has not been supplied as a part of the system to the multiple portable socket-outlets for the system. Otherwise, it may result in fire or electric shock.

Do not simultaneously touch a patient and non-medical electrical equipment with which you may get contact. Otherwise, it may result in electric shock.

For cleaning equipment forming part of the system, follow the instruction manual for the equipment. Otherwise, it may cause failure, an accident, or fire.

CAUTION

Install the system in a way that enables the user to achieve optimal use.

(6)

Page 9

Label on the Instrument

The CX-1 has a label on it. The label contents and its position are indicated below.

Safety Information

(7)

Page 10

Components

Digital Retinal Camera CX-1............................................. 1

Digital camera .....................................1 Camera cover...................................... 1

Power cable

(3 m, Non-shielded) ............................1

* Plug shapes differ by power

specifications.

Chin rest paper ................................100 Video cable ......................................... 1

Camera mount cap...............................1 Objective lens cap............................... 1

Dust cover ...........................................1 Body cap ............................................. 1

External eye fixation lamp.................. 1

CD-ROM (Retinal imaging control

software)..............................................1

Optional Units

Internal eye fixation target

Stereo unit Chin rest paper (500 sheets)

Operation Manual (CX-1/control

software) ..................................... 1 each

(8)

Page 11

Contents

Safety Information ..............................................................................................................(1)

Components .......................................................................................................................(8)

1. Features ..........................................................................................................................1

2. Notes for Using the Instrument........................................................................................2

3. Names of Parts................................................................................................................ 4

3.1 Main Unit ................................................................................................................................4

3.2 Operation Panel .....................................................................................................................6

3.3 Observation Monitor and Viewfinder ......................................................................................7

4. Preparation...................................................................................................................... 8

4.1 Power Cable Connections ......................................................................................................8

4.2 Connecting to a Computer .....................................................................................................9

4.3 Carrying the Instrument ........................................................................................................10

5. Basic Photography ........................................................................................................ 11

5.1 Before Taking Photographs ..................................................................................................11

5.1.1 Turn On the Power ...................................................................................................................... 11

5.1.2 Move the Stage Unit to Get Started ............................................................................................ 12

5.1.3 Adjust the Viewfinder .................................................................................................................. 12

5.2 Photography Flow ................................................................................................................13

5.3 Non-Mydriatic Mode ............................................................................................................. 14

5.3.1 Color Photography Mode ............................................................................................................ 14

5.3.2 Red-free Photography Mode ....................................................................................................... 20

5.3.3 Cobalt Photography Mode .......................................................................................................... 21

5.3.4 Fluorescein Angiography Mode .................................................................................................. 21

5.3.5 Fundus Autofluorescence Mode ................................................................................................. 23

5.4 Mydriatic Mode .....................................................................................................................24

5.4.1 Color Photography Mode ............................................................................................................ 24

5.4.2 Red-free Photography Mode ....................................................................................................... 30

5.4.3 Cobalt Photography Mode .......................................................................................................... 30

5.4.4 Fluorescein Angiography Mode .................................................................................................. 30

5.4.5 Fundus Autofluorescence Mode ................................................................................................. 32

6. Photography Auxiliary Functions................................................................................... 33

6.1 Using the Focus Indicator .....................................................................................................33

6.2 ×2 photography function .......................................................................................................33

6.3 Small pupil photography function .........................................................................................34

6.4 Diopter Compensation Function ...........................................................................................34

6.5 Panning Function and Tilting Function .................................................................................35

6.5.1 Panning Function ........................................................................................................................ 35

6.5.2 Tilting Function ............................................................................................................................ 35

6.6 Using the External Monitor ...................................................................................................36

(9)

Page 12

Contents

7. Daily Inspection and Maintenance................................................................................. 38

7.1 Inspection .............................................................................................................................38

7.1.1 Before Turning ON the Power ..................................................................................................... 39

7.1.2 Turning ON the Power ................................................................................................................ 40

7.2 Before Calling a Service Technician ....................................................................................41

7.2.1 Troubleshooting .......................................................................................................................... 41

7.3 Cleaning and Disinfection ..................................................................................................... 44

7.3.1 Objective Lens ............................................................................................................................ 44

7.3.2 Viewfinder ................................................................................................................................... 45

7.3.3 Forehead Rest ............................................................................................................................ 45

7.3.4 Retinal Camera and Digital Camera Outer Covers ..................................................................... 46

7.4 Refilling the Chin Rest Paper ............................................................................................... 47

7.5 Removing and Installing the Digital Camera ........................................................................48

7.5.1 Removing the Digital Camera ..................................................................................................... 48

7.5.2 Installing the Digital Camera ....................................................................................................... 50

7.5.3 Cleaning the Digital Camera (imaging sensor) ........................................................................... 52

8. Main Specifications and Performance........................................................................... 53

8.1 Main Specifications ..............................................................................................................53

8.2 Functions in the Observation and Photography Modes .......................................................54

8.3 Guidance and Manufacturer’s Declaration for EMC Directive ..............................................55

9. Service Information........................................................................................................59

(10)

Page 13

1. Features

The Digital Retinal Camera CX-1 is used to observe the retinas of patients’ eyes and take photographs of

them. The camera has the following features.

Both mydriatic and non-mydriatic modes in a single unit

The CX-1 includes a mydriatic mode and non-mydriatic mode, and each mode can be selected with a

single switch.

In the mydriatic mode, the optical viewfinder is used for observation. In the non-mydriatic mode, the

observation monitor on the special digital camera is used for observation.

Fundus autofluorescence photography

Fundus autofluorescence photography is possible in both mydriatic and non-mydriatic modes.

Special digital camera

The CX-1 includes a special digital camera using EOS digital technology as a standard accessory.

This enables the CX-1 to fully maximize Canon technology for shooting high-quality, high-resolution

diagnostic images.

Compact, user-friendly design

Panning and tilting functions are provided as standard options in a compact, lightweight design.

The compact body makes it easier to assist patients and provides significantly improved ease-of-operation.

Vertical movement of the main body by a motorized chin rest and an operation lever significantly improves

alignment operability.

Small pupil photography function

The CX-1 can photograph dilated pupils with a diameter of at least 5.1 mm in the mydriatic mode, with

50° of their field angle. It can photograph non-dilated pupils with the diameter of at least 4.3 mm in the

non-mydriatic mode, with 45° of their field angle.

The CX-1 provides the small pupil photography function for patients whose eyes are difficult to dilate.

Using the function, it can take photographs dilated pupils with a diameter of at least 4.3 mm and non-

dilated pupils with a diameter of at least 3.8 mm.

System optimized for digital photography

With the Retinal imaging control software (called “control software” below), images photographed by the

CX-1 can be browsed, processed, stored, output to the DICOM storage server, exported to DICOM files,

and output to a printer.

The settings for the lighting system filter, flash intensity, and digital camera are automatically optimized

for each photography mode – color, red-free, cobalt, fluorescein angiography, or fundus autofluorescence.

-1-

Page 14

2. Notes for Using the Instrument

Digital camera

• The digital camera installed on the Digital Retinal Camera CX-1 is designed for the CX-1.

• The specifications differ from the typical commercially-available Canon digital cameras. It cannot be

used for purposes other than observing and taking photographs of peoples’ eyes. Do not use the digital

camera removing from the retinal camera body. This can damage or harm the performance of the

instrument.

• If any problems with the digital camera occur or repairs are needed, please contact a Canon

representative or distributor.

Before use

• Check and clean the objective lens before taking an image, as any stains or scratches on it will appear

as white spots.

• Sudden heating of the room in cold areas will cause condensation to form on the objective lens or on

optical parts inside the instrument. In this case, wait until condensation disappears before performing

photography.

• Do not touch the lens part of the retinal camera and the mirror part of the digital camera when attaching

and detaching the digital camera from the retinal camera body. If any dirt, fingerprints, dust, and other

foreign objects attaches to the lens or mirror part, you cannot take a good image.

• Be sure to adjust the diopter of the viewfinder so it matches the diopter of photographer’s eye.

Otherwise, focusing will not be able to be performed correctly.

After use

• Turn OFF the power of the instrument. Place the cap over the objective lens, and place the dust cover

over the instrument. You cannot take a good picture when the objective lens is dirty.

• If the digital camera is removed and left unattached, dust and other foreign objects can enter the retinal

camera and the digital camera. Be sure to always attach the caps to the respective mounts.

Cleaning and disinfection

• Do not let the tip of a blower touch the objective lens.

• Do not wipe off or rub the objective lens when there is dust or other substances on it.

This could scratch the lens surface.

• Never wipe the objective lens with disinfecting ethanol, eyeglass lens cleaner, or cleaning paper

containing silicon. The lens surface could be damaged or the surface may not be completely wiped off.

• Do not clean the cover of the instrument with lens cleaner. The cover of the instrument could be

damaged.

• Never use alcohol, benzine, thinner, or other solvents to clean the cover of the instrument. This could

damage the cover of the instrument.

-2-

Page 15

2. Notes for Using the Instrument

• Never use disinfecting ethanol, glutaraldehyde or other solvents to clean the cover of the instrument,

except the forehead rest and the chin rest. This could damage the cover of the instrument.

• If the chin rest paper will not be used, be sure to disinfect the chin rest in the same way as the forehead

rest whenever the patient changes.

Environment of use

• Use the camera in an environment that satisfies the following requirements.

Use

Temperature: 10°C to 35°C

Humidity: 30% to 80% RH (no condensation)

Atmospheric pressure: 800 hPa to 1060 hPa

Storage and Transportation

Temperature: –30°C to 60°C

Humidity: 10% to 60% RH (no condensation)

Atmospheric pressure: 700 hPa to 1060 hPa

• Do not install or store the camera or leave it standing in an adverse environment such as where the

temperature and humidity levels are high. Doing so may cause trouble and/or malfunction. Be sure to

observe the points of Installation and Environment of Use (see page (3)) when selecting the

installation location.

• Dust in the air will not only attach to the objective lens, but will also attach onto the optical parts inside

the instrument. You cannot take a good image when dust is on them. Please keep the room clean.

Installation

• Please ask a Canon representative or distributor to perform installation of this product.

• Please handle this product carefully. The adjustment can be altered if it is subjected to a strong shock or

jolt.

• If this product will be transported in an automobile or shipped a long distance, protective measures need

to be taken for vibrations and shocks. Ask a Canon representative or distributor for more information.

Others

For U.S.A.

Rx only-Caution:

Federal law restricts this device to sale by or on the order of a licensed practitioner.

Intended Use:

The device is intended to be used for taking digital images of retina of human eye.

For European Union

Intended Use:

This medical device is intended to observe image and record retinal fundus through the pupil without

contact with subject’s eye for the purpose of diagnosis by way of producing fundus image information.

-3-

Page 16

3. Names of Parts

3.1 Main Unit

2 3

1 External eye fixation lamp (see page 17,

27)

2 Face rest

3 Forehead rest (see page 45)

4 Objective lens (see page 44)

5 Objective lens cap

6 Chin rest (see page 15)

7 Diopter compensation lever

(see page 34)

8 Focus knob (see page 17, 27)

9 Pan Tilt grip (see page 35)

10 Finger guard

11 Carrying indentations (see page 10)

-4-

Page 17

3. Names of Parts

23 24

26 27

12 Viewfinder (see page 7)

13 Digital camera (see page (8))

14 Digital camera cover (see page 48)

15 Observation monitor (see page 7)

16 Digital camera power switch

(see page 11)

17 Shutter release button (see page 18, 21,

22, 28)

18 Operation lever (see page 12, 15, 16)

19 Stage unit (see page 12, 15, 19, 29)

-5-

20 Height adjustment mark (see page 15)

21 Tilting lock lever (see page 35)

22 Panning lock knob (see page 35)

23 Operation panel (see page 6)

24 Stage unit lock button (see page 19)

25 USB connector (see page 9)

26 AC power connector (see page 8)

27 Retinal camera power switch

Page 18

3. Names of Parts

3.2 Operation Panel

1 2 3 4

1 Brightness adjuster (see page 16)

2 Focus indicator switch/lamp

(see page 33)

3 ×2 switch/lamp (see page 33)

4 Small pupil photography switch/lamp

(see page 34)

5 BA switch/lamp (see page 30)

6 Flash intensity indicator (see page 19)

7 Flash intensity switches (see page 19)

8 TIMER/C switch/lamp (see page 22)

9 Observation mode lamp

Myd (see page 24)

Non-Myd (see page 14)

10 Observation mode switch

(see page 14, 24)

11 Photography mode switches/lamps

From left to right;

COLOR (see page 14, 24)

RED FREE (see page 20, 30)

COBALT (see page 21, 30)

FLUO (see page 21, 30)

FAF (see page 23, 32)

12 FIX TARGET (internal eye fixation)

switches (see page 17)

13 Blink switch (see page 17)

14 POWER lamp (see page 11)

15 CHIN REST switch (see page 15)

-6-

Page 19

3.3 Observation Monitor and Viewfinder

Observation monitor (with x1.3 magnification)

3. Names of Parts

1 Photography mode indication

COLOR: Color (see page 14) RED FREE: Red free (see page 20) COBALT: Cobalt (see page 21) FLUO: Fluorescein angiography

(see page 21)

FAF: Fundus autofluorescence

(see page 23) 2 Focus indicator (see page 17) 3 ×2 photography indicator (see page 33) 4 Small pupil photography indicator

(see page 34)

COLOR

5 Right/Left eye indicator

R: Right eye L: Left eye

6 Small pupil photography effective area

(see page 34)

7 Internal eye fixation lamp position

(see page 17) 8 ×2 photography range (see page 33) 9 Photography ready lamp (see page 18)

Viewfinder

1 ×2 photography range (see page 33)

2 Focus indicator (see page 27)

3 Photography ready lamp (see page 18)

4 ×2 photography range (see page 33)

-7-

Page 20

4. Preparation

Please ask a Canon representative or distributor to perform installation of this instrument.

4.1 Power Cable Connections

WARNING

CAUTION

Check that the power switch of the retinal camera is set to the O position (OFF).

Connect the power cable to the retinal camera.

Insert the power cable connector firmly into the AC

power connector while holding down the retinal

camera with your hand.

Be sure to operate this instrument using the power supply described in the specifications. Otherwise, it may result in fire or electric shock.

Be sure to turn OFF the power before plugging or unplugging the cables as indicated in this manual. Also, do not handle it with wet hands. Otherwise, you may get an electric shock that may result in death or serious injury.

Before connecting or disconnecting the cables, be sure to hold the instrument firmly in order to ensure safety. Otherwise, the main unit may fall over, possibly causing injury.

Always use a grounded AC outlet for a 3-pin plug as the power outlet.

Insert the power plug into the AC outlet.

Insert the plug all the way into the AC outlet.

OFF ON

-8-

Page 21

4.2 Connecting to a Computer

Connect the retinal camera to a computer where the supplied software has been installed.

Check that the power switches for the retinal camera and digital camera are set to the OFF

position.

Connect the USB cables to the main unit.

Insert the USB cable connectors firmly into the USB

connectors while holding down the main unit with your

hand.

4. Preparation

Connect the USB connectors at the other end to the computer.

Connect the connectors at the other end of the USB cables firmly into USB connectors of the

computer.

Note: Use the following type of USB cables. Communication may not be possible if any other

kind of cable is used.

• Cable with type AB connector plug supporting USB 2.0 Hi-Speed, maximum length of

3 meters

For further details, contact a Canon representative or the distributor from which you

purchased the unit.

Note: When connecting the USB cable, pass it underneath the cables of the camera main unit.

If it is passed over the main unit cables, the USB cable may become disconnected as the

main unit moves for taking images.

-9-

Page 22

4. Preparation

4.3 Carrying the Instrument

This is the procedure when carrying the instrument by hand.

WARNING

Turn off the power of the retinal camera.

Press the power switch of the retinal camera to the O side (OFF).

When the instrument is going to be moved, be sure to turn OFF the power, unplug the power cable from the AC outlet, and disconnect other cables. Otherwise, the cable may be damaged, which may result in fire or electric shock. Also, when the instrument is going to be carried, be sure to tighten the stage unit lock, the panning lock knob and the tilting lock lever, hold the indentations at the left and right of the bottom panel, and hold the instrument horizontally. Do not hold it by the digital camera or the face rest poles or other parts, as they may come off and result in injury.

Do not hit or drop the instrument. The instrument may be damaged if it receives a strong jolt, which may result in fire or electric shock if the instrument is used without it being repaired.

Remove the connected cables.

Remove all power cables and USB cables.

Secure the parts in place.

Tighten the panning lock knob, tilting lock lever and the stage unit lock.

Carry the retinal camera main unit.

Hold the retinal camera main unit by holding the carrying indentations at the left and right of the

bottom panel, and carrying the unit kept horizontally.

To remove the digital camera before carrying the retinal camera

See section 7.5.1 Removing the Digital Camera (page 48).

Note: If this product will be transported in an automobile or shipped a long distance, protective

measures need to be taken for vibrations and shocks. Ask a Canon representative or

distributor for more information.

-10-

Page 23

5. Basic Photography

OFF ON

5.1 Before Taking Photographs

5.1.1 Turn On the Power

Remove the dust cover and the objective lens cap.

Turn on the computer.

Turn on the computer, and start the control software.

Concerning control software operations

For details on the control software operations, refer to the operation manual of the control

software.

Turn on the power switch of the digital camera.

Set the power switch of the digital camera to or

Turn on the power of the retinal camera.

Press the power switch of the retinal camera to the I

side (ON).

Concerning the power-saving function

The power-saving function is activated under the following circumstances.

• When none of the switches on the operation panel has been operated for 10 or more minutes

while power is supplied to the camera

• When none of the switches on the operation panel has been operated for 1 or more minutes

after the operation to stop the timer has been performed during fluorescein angiography

photography

When the power-saving function has been activated, the POWER lamp on the operation panel

blinks.

To restore normal operation, press any switch on the operation panel, move the stage to the left or

right or operate the diopter compensation lever.

-11-

Page 24

5. Basic Photography

5.1.2 Move the Stage Unit to Get Started

Press the stage unit lock button to release the lock.

Grasp the operation lever, and pull the stage all the way to the

right front, and then press the stage lock button to lock it in

place.

5.1.3 Adjust the Viewfinder

Note: Be sure to adjust the diopter of the viewfinder so it matches the diopter of photographer’s

eye before taking photographs in the mydriatic mode. Otherwise, focusing will not be able

to be performed correctly.

Turn the viewfinder diopter compensation ring

counterclockwise (to the positive end) until it

stops.

Look into the viewfinder with one eye.

Gradually turn the diopter compensation ring

clockwise (toward negative direction) until the

crosshairs in the field of view appear sharpest.

-12-

Page 25

5.2 Photography Flow

This instrument includes non-mydriatic and mydriatic observation modes. In each observation mode,

photographs can be taken using color, red-free, cobalt, fluorescein angiography, or fundus

autofluorescence. The observation monitor is used in non-mydriatic mode, and the viewfinder is used in

mydriatic mode. The flow of photography operations is shown in the photography flowchart below.

For a list of the functions in the observation modes and photography modes, refer to 8.2 Functions in the

Observation and Photography Modes (page 54).

5. Basic Photography

Enter study information

Select observation mode

Non-mydriatic mode

Select photography mode

Set flash intensity

Check pupil diameter

Set observation light intensity

Adjust int./ext. eye fixation lamp position

Align positions and focus image

Select diopter compensation

Mydriatic mode

Adjust viewfinder diopter

Select photography mode

Set flash intensity

Check mydriatic condition

Set observation light intensity

Adjust external eye fixation lamp position

Align positions and focus image

Select diopter compensation

Press shutter release button

Check images

Edit and save images

Finish photographing

Concerning control software operations

Use the control software for operations in in the chart. For details on the control software

operations, refer to the Operation Manual of the control software.

-13-

Press shutter release button

Page 26

5. Basic Photography

5.3 Non-Mydriatic Mode

The Non-Mydriatic mode is designed for photographing the

patient eye without using a mydriatic.

To switch from the mydriatic mode to the non-mydriatic

mode, hold down the observation mode switch for approx.

2 or more seconds.

The observation mode lamp Non-Myd turns on.

The observation monitor is used for retinal observation.

Note: Overexposure may result when photographs of patient eyes are taken using a mydriatic in

the non-mydriatic mode.

5.3.1 Color Photography Mode

Enter the study information into the computer.

Enter the study information with the control software.

Select the color photography mode.

Press the COLOR switch.

Or select the photography mode with the control

software.

COLOR lamp turns on.

COLOR is displayed on the observation monitor.

Disinfect the forehead rest and replace the chin rest paper.

To prevent the risk of infection, wipe the forehead rest with a disinfectant

CAUTION

such as ethanol or glutaraldehyde whenever the patient is changed. For details on the disinfection procedure, consult a specialist.

To ensure cleanliness, replace the chin rest paper whenever the patient is changed.

If chin rest paper is not used, disinfect the chin rest.

Have the patient sit down.

If the patient is wearing glasses or contact lenses, instruct the patient to remove them.

Have the patient place his or her chin against the chin rest and his or her forehead against the

forehead rest.

-14-

Page 27

5. Basic Photography

Align the height of the patient’s eye.

Press the CHIN REST switches to adjust the chin rest up or down so that the patient’s eye is aligned

with the height adjustment mark.

Height adjustment mark

Move the stage position.

Do not put your fingers or hands between the sliding part and base of the stage unit or on the panning and tilting sliding parts.

CAUTION

Similarly, do not allow patients to put their hands in these places. Otherwise, your or their hands or fingers may be pinched, possibly resulting in injury.

If the stage is locked at the operator’s side, press the

stage lock button to unlock the stage.

Hold the operation lever, pull it towards you, and then

move the stage toward the eye to be photographed.

Align the retinal camera to the eye to be photographed.

When adjusting the position of the retinal camera in the front-back

CAUTION

Slowly bring the stage closer to the patient’s eye so that

a retinal image becomes visible on the observation

monitor.

direction, slowly bring the retinal camera closer to the patient while looking at the patient’s eye from the side. You may injure the patient’s eye if the objective lens makes contact with it.

-15-

Page 28

5. Basic Photography

The right and left dots (working distance dots) appear

sharpest when the retinal camera is at the optimum

position.

Direction Operation

Height Turn the operation lever.

Hold the operation lever, and pull it to the left and right to perform

Side movement

rough adjustment, and tilt it to the left and right to perform fine adjustment.

Hold the operation lever, and pull it forward and backward to perform

Forward/backward

rough adjustment, and tilt it forward and backward to perform fine adjustment.

COLOR

When the split lines are not visible

Part of the split lines may not be visible if the pupil diameter is small.

In this case, press the small pupil photography switch to turn on the small pupil photography

function. (see page 34)

Concerning the linkup function of the working distance dots

With a setting in the control software, the working distance dot and split line operations can be

linked up.

For details, refer to the operation manual of the control software.

Adjust brightness in the field of view for observation.

Turning the brightness adjuster clockwise increases the

brightness for observation, and turning it counter-

clockwise reduces the brightness for observation.

Working distance dots

Split lines

Concerning the brightness for observation

Standard brightness is the position 4 on the scale.

Considering the strain on the patient’s eye, select the lowest possible brightness level.

-16-

Page 29

5. Basic Photography

COLOR R

During focus adjustmentFocus is not being adjusted

Good

Determine the area to be photographed.

Have the patient stare at the green internal eye fixation lamp. If necessary, press a FIX TARGET

switch to move the internal eye fixation lamp to guide the patientís eye. If you press the blink switch,

the internal eye fixation lamp blinks to make the lamp more noticeable to the patient and helps to

guide the patient’s eye. If the eye cannot be guided by the internal eye fixation lamp, use the external

eye fixation lamp.

Concerning the external eye fixation lamp function

In the non-mydriatic mode, you can use either the internal eye fixation lamp or external eye

fixation lamp. The lamp to be used can be selected in the control software.

For details, refer to the Operation Manual of the control software.

Resetting the internal eye fixation lamp position

If you hold down the blink switch for approx. 2 or more seconds, the internal eye fixation lamp

blinks for 2 seconds and can be returned to its initial position.

Focus on patient’s eye.

Turn the focus knob to make the split lines into a single

line.

While the focus knob is being turned, the image

appears larger.

When the split lines cannot be aligned

If the patient diopter is not in the range of -10 to +15 (D), focusing cannot be performed using the

focus indicator.

In this case, use the diopter compensation function (see page 34) to focus the image so that it

appears sharpest in the observation monitor.

-17-

Page 30

5. Basic Photography

Photography ready lamp

COLOR R

Color Description

Green

Images can be taken. (Up to 10 images can be taken continuously when in the fluorescein angiography mode.)

Orange

Images can be taken, but if image-taking is continued, the getting ready status will soon be established.

Red

The camera is in the getting ready status (no images can be taken). Wait until the lamp lights up green or orange.

Take the image.

Check that the photography ready lamp lights green.

Check again that the working distance dots appear

sharpest and the split lines form a single line, and then

press the shutter release button.

Concerning the photography ready lamp

The ready status of the fundus camera is indicated by the color of the photography ready lamp.

This status differs depending on the photography mode and image-taking conditions.

-18-

Page 31

5. Basic Photography

Increased by 87% (equivalent to a step of 0.9) of the standard

Standard

Increased by 52% (equivalent to a step of 0.6) of the standard

Increased by 23% (equivalent to a step of 0.3) of the standard

Reduced by 19% (equivalent to a step of 0.3) of the standard

Reduced by 34% (equivalent to a step of 0.6) of the standard

Reduced by 47% (equivalent to a step of 0.9) of the standard

Reduced by 56% (equivalent to a step of 1.2) of the standard

Reduced by 65% (equivalent to a step of 1.5) of the standard

Concerning the adjustment of the flash intensity (for color, red free, cobalt photography

mode, and fluorescein angiography mode)

The flash intensity is already set to the standard level for each photography mode.

To adjust the intensity, press the flash intensity switches.

Each time one of these switches is pressed, the intensity is increased or reduced by steps of 0.3.

The flash intensity selected is shown by the lighted area of the flash intensity indicator.

Note: For details on the flash intensity adjustment in the fundus autofluorescence mode,

refer to Concerning the adjustment of the flash intensity (for fundus

autofluorescence mode) (page 23).

Review the image.

The fundus images and study information are displayed in the control software. Check the images.

To take images of the other eye, repeat steps 7 and the following.

End the study.

End the study with the control software.

Lock the stage unit.

Press the stage unit lock button to lock the stage unit.

-19-

Page 32

5. Basic Photography

Lock position Description

Locked at center

Center position of stage unit (The unit is locked here upon completion of the examination.)

Lock at front right

Position where the stage unit has been drawn to the front right. (This protects the patient’s eyes from unintended operations either while an examination is being undertaken or after an examination has been completed.)

Concerning locking the stage unit

When the stage unit lock button is pressed, the stage unit can be locked or unlocked in the

following two places.

Turn off the power of the retinal camera.

5.3.2 Red-free Photography Mode

Enter the study information into the computer.

Select the red-free photography mode.

Press the RED FREE switch.

Or select the photography mode with the control

software.

The RED FREE lamp turns on. RED FREE is

displayed on the observation monitor.

Perform the procedure starting from step 3 in 5.3.1 Color Photography Mode (see page 14).

-20-

Page 33

5.3.3 Cobalt Photography Mode

In this mode, photography using the exciter filter for fluorescein angiography is possible.

Enter the study information into the computer.

Select the cobalt photography mode.

Press the COBALT switch.

Or select the photography mode with the control

software.

The COBALT lamp turns on. COBALT is displayed on

the observation monitor.

Perform the procedure starting from step 3 in 5.3.1 Color Photography Mode (see page 14).

5. Basic Photography

5.3.4 Fluorescein Angiography Mode

If taking multiple photographs, a mydriatic must be used.

Enter the study information into the computer.

Select the fluorescein angiography mode.

Press the FLUO switch.

Or select the photography mode with the control

software.

The FLUO lamp turns on. FLUO is displayed on the

observation monitor.

Disinfect the forehead rest and replace the chin

rest paper.

Have the patient sit down.

Align the height of the patient’s eye.

Move the stage position.

Align the retinal camera to the eye to be photographed.

Adjust brightness in the field of view for observation.

-21-

Page 34

5. Basic Photography

Roughly determine the area to be photographed.

Focus on the patient’s eye.

Start the timer.

Press the TIMER/C switch as soon as the fluorescein

medium is injected. The buzzer sounds each second,

the lamp lights brightly and the elapsed time is

displayed in the control software.

Take the image.

Check again that the working distance dots appear

sharpest and the split lines form a single line, and then

press the shutter release button.

To take images continuously, hold down the shutter

release button. Images can be taken continuously for up

to 10 seconds at a rate of one frame per second.

Review the image.

Stop the timer.

Press the TIMER/C switch. The elapsed time display is reset.

End the study.

Lock the stage unit.

Press the stage unit lock button to lock the stage unit.

Turn off the power of the retinal camera.

-22-

Page 35

5.3.5 Fundus Autofluorescence Mode

Enter the study information into the computer.

Select the fundus autofluorescence mode.

Press the FAF switch.

Or select the photography mode with the control

software.

The FAF lamp turns on. FAF is displayed on the

observation monitor.

Perform the procedure starting from step 3 in 5.3.1 Color Photography Mode (see page 14).

Concerning the adjustment of the flash intensity (for fundus autofluorescence mode)

The flash intensity is already set to the standard level for each photography mode.

To adjust the intensity, press the flash intensity switches.

Each time one of these switches is pressed, the intensity is increased or reduced by steps of 0.3.

The flash intensity selected is shown by the lighted area of the flash intensity indicator.

5. Basic Photography

Standard

Reduced by 19% (equivalent to a step of 0.3) of the standard

Reduced by 34% (equivalent to a step of 0.6) of the standard

Reduced by 47% (equivalent to a step of 0.9) of the standard

Reduced by 56% (equivalent to a step of 1.2) of the standard

Reduced by 65% (equivalent to a step of 1.5) of the standard

Note: For details on the flash intensity adjustment in the color, red free, cobalt

photography mode, and fluorescein angiography mode, refer to Concerning the

adjustment of the flash intensity (for color, red free, cobalt photography mode, and

fluorescein angiography mode) (page 19).

-23-

Page 36

5. Basic Photography

5.4 Mydriatic Mode

The Mydriatic mode is designed for photographing the

patient’s eye that a mydriatic is applied. To switch from the

non-mydriatic mode to the mydriatic mode, hold down the

observation mode switch for approx. 2 or more seconds.

The observation mode lamp Myd turns on.

The viewfinder is used for retinal observation.

Check that the diopter of the viewfinder is aligned (see

page 12).

5.4.1 Color Photography Mode

Enter the study information into the computer.

Enter the study information with the control software.

Select the color photography mode.

Press the COLOR switch.

Or select the photography mode with the control

software.

The COLOR lamp turns on.

Disinfect the forehead rest and replace the chin rest paper.

To prevent the risk of infection, wipe the forehead rest with a disinfectant

CAUTION

If chin rest paper is not used, disinfect the chin rest.

Have the patient sit down.

Have the patient place his or her chin against the chin rest and his or her forehead against the

forehead rest.

such as ethanol or glutaraldehyde whenever the patient is changed. For details on the disinfection procedure, consult a specialist.

To ensure cleanliness, replace the chin rest paper whenever the patient is changed.

-24-

Page 37

5. Basic Photography

Align the height of the patient’s eye.

Press the CHIN REST switches to adjust the chin rest up or down so that the patient’s eye is aligned

with the height adjustment mark.

Height adjustment mark

Move the stage position.

Do not put your fingers or hands between the sliding part and base of the stage unit or on the panning and tilting sliding parts.

CAUTION

Similarly, do not allow patients to put their hands in these places. Otherwise, your or their hands or fingers may be pinched, possibly resulting in injury.

If the stage is locked at the operator’s side, press the

stage lock button to unlock the stage.

Hold the operation lever, pull it towards you, and then

move the stage toward the eye to be photographed.

Align the retinal camera to the eye to be photographed.

When adjusting the position of the retinal camera in the front-back

CAUTION

Slowly bring the retinal camera closer to the patient

eye.

direction, slowly bring the retinal camera closer to the patient while looking at the patient’s eye from the side. You may injure the patient’s eye if the objective lens makes contact with it.

-25-

Page 38

5. Basic Photography

The right and left dots (working distance dots) appear

sharpest when the retinal camera is at the optimum

position.

Direction Operation

Height Turn the operation lever.

Hold the operation lever, and pull it to the left and right to perform

Side movement

Forward/backward

rough adjustment, and tilt it to the left and right to perform fine adjustment.

Hold the operation lever, and pull it forward and backward to perform rough adjustment, and tilt it forward and backward to perform fine adjustment.

Split line

When the split lines are not visible

Part of the split lines may not be visible if the pupil diameter is small.

In this case, press the small pupil photography switch to turn on the small pupil photography

function. (see page 34)

Concerning the linkup function of the working distance dots

With a setting in the control software, the working distance dot and split line operations can be

linked up.

For details, refer to the operation manual of the control software.

Adjust brightness in the field of view for observation.

Turning the brightness adjuster clockwise increases the

brightness for observation, and turning it counter-

clockwise reduces the brightness for observation.

Working distance dots

Concerning the brightness for observation

Standard brightness is the position 4 on the scale.

Considering the strain on the patient’s eye, select the lowest possible brightness level.

-26-

Page 39

Determine the area to be photographed.

Split line

Good

Use the external eye fixation lamp to guide the patient’s eye.

When it is difficult to guide a patient’s eye using the external eye fixation lamp

Patients’ eyes can also be guided using the internal eye fixation target (sold separately).

For details, contact a Canon representative or distributor.

Focus on patient’s eye.

Turn the focus knob to focus the image.

When using the focus indicator, ensure that the split

lines are aligned into a single straight line.

5. Basic Photography

CX-1

When the split lines cannot be aligned

If the patient diopter is not in the range of -10 to +15 D, focusing cannot be performed using the

focus indicator.

In this case, use the diopter compensation function (see page 34) to focus with the cross hair

line in the viewfinder.

When bringing the target into exact focus

When bringing the target into focus, the focus indicator serves as the general guideline for

focusing.

To bring it into focus even more exactly, focus on the target in such a way that the cross hair lines

in the viewfinder and fundus image can be clearly seen at the same time.

-27-

Page 40

5. Basic Photography

Color Description

Green

Images can be taken. (Up to 10 images can be taken continuously when in the fluorescein angiography mode.)

Orange

Images can be taken, but if image-taking is continued, the getting ready status will soon be established.

Red

The camera is in the getting ready status (no images can be taken). Wait until the lamp lights up green or orange.

Increased by 87% (equivalent to a step of 0.9) of the standard

Standard

Increased by 52% (equivalent to a step of 0.6) of the standard

Increased by 23% (equivalent to a step of 0.3) of the standard

Reduced by 19% (equivalent to a step of 0.3) of the standard

Reduced by 34% (equivalent to a step of 0.6) of the standard

Reduced by 47% (equivalent to a step of 0.9) of the standard

Reduced by 56% (equivalent to a step of 1.2) of the standard

Reduced by 65% (equivalent to a step of 1.5) of the standard

Take the image.

Check that the photography ready lamp lights green.

In a flare-free condition, check the focus again, and press the shutter release button.

Concerning the photography ready lamp

The ready status of the fundus camera is indicated by the color of the photography ready lamp.

This status differs depending on the photography mode and image-taking conditions.

Concerning the adjustment of the flash intensity (for color, red free, cobalt photography

mode, and fluorescein angiography mode)

The flash intensity is already set to the standard level for each photography mode.

To adjust the intensity, press the flash intensity switches.

Each time one of these switches is pressed, the intensity is increased or reduced by steps of 0.3.

The flash intensity selected is shown by the lighted area of the flash intensity indicator.

Note: For details on the flash intensity adjustment in the fundus autofluorescence mode,

refer to Concerning the adjustment of the flash intensity (for fundus

autofluorescence mode) (page 32).

-28-

Page 41

5. Basic Photography

Lock position Description

Locked at center

Center position of stage unit (The unit is locked here upon completion of the examination.)

Lock at front right

Review the image.

The fundus images and study information are displayed in the control software. Check the images.

To take images of the other eye, repeat steps 7 and the following.

End the study.

End the study with the control software.

Lock the stage unit.

Press the stage unit lock button to lock the stage unit.

Concerning locking the stage unit

When the stage unit lock button is pressed, the stage unit can be locked or unlocked in the

following two places.

Turn off the power of the retinal camera.

-29-

Page 42

5. Basic Photography

5.4.2 Red-free Photography Mode

Enter the study information into the computer.

Select the red-free photography mode.

Press the RED FREE switch. Or select the photography mode with the control software.

The RED FREE lamp turns on.

Perform the procedure starting from step 3 in 5.4.1 Color Photography Mode (see page 24).

5.4.3 Cobalt Photography Mode

Enter the study information into the computer.

Select the cobalt photography mode.

Press the COBALT switch. Or select the photography mode with the control software.

The COBALT lamp turns on.

Perform the procedure starting from step 3 in 5.4.1 Color Photography Mode (see page 24).

5.4.4 Fluorescein Angiography Mode

Enter the study information into the computer.

Select the fluorescein angiography mode.

Press the FLUO switch. Or select the photography mode with the control software.

The FLUO lamp turns on.

Disinfect the forehead rest and replace the chin rest papar.

Have the patient sit down.

Align the height of the patient’s eye.

Move the stage position.

Align the camera to the eye to be photographed.

Concerning the barrier filter

During retinal observations in the fluorescein angiography mode, each time the BA switch is

pressed, the barrier filter is inserted or disengaged. However, while images are being taken, the

filter is inserted automatically.

While the barrier filter is inserted, the lamp above the button lights brightly.

Adjust brightness in the field of view for observation.

Determine the area to be photographed.

-30-

Page 43

5. Basic Photography

Focus on patient’s eye.

Start the timer.

Press the TIMER/C switch as soon as the fluorescein medium is injected. The buzzer sounds each

second, the lamp lights brightly and the elapsed time is displayed in the control software.

Take the image.

In a flare-free condition, check the focus again, and press the shutter release button.

To take images continuously, hold down the shutter release button. Images can be taken continuously

for up to 10 seconds at a rate of one frame per second.

Review the image.

Stop the timer.

Press the TIMER/C switch. The elapsed time display is reset.

End the study.

Lock the stage unit.

Press the stage unit lock button to lock the stage unit.

Turn off the power of the retinal camera.

-31-

Page 44

5. Basic Photography

5.4.5 Fundus Autofluorescence Mode

Enter the study information into the computer.

Select the fundus autofluorescence mode.

Press the FAF switch.

Or select the photography mode with the control

software.

The FAF lamp turns on.