Canon CR-2 - Manual (Page 25)

4 Basic Operations
25
Alignment
1
Align the retinal camera with the eye to be photographed.
CAUTION When adjusting the position of the retinal camera in the front-back direction, slowly bring the main
unit closer to the patient while looking at the patient’s eye from the side. The patient’s eye may be
injured if the objective lens makes contact with it.
1. Move the stage until the eye to be photographed appears in the observation monitor.
2. Adjust the center of the patient's pupil and the pupil alignment circles.
3. Have the patient stare at the green blinking internal eye fixation lamp.
Pupil alignment circles
When examining the anterior eye of a patient who is extremely near or far sighted, the patient may
not be able to see the internal eye fixation lamp.
• To move the main unit slightly to the left or right, tilt the
operation lever to the left or right.
• To move the main unit slightly to the front or back, tilt the
operation lever to the front or back.
• To move the main unit up or down, turn the main unit
vertical movement ring.
When the vertical position cannot be fully adjusted by using the operation lever
Adjust the height of the chin rest with the CHIN REST button to raise or lower the patient's face.