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Topcon TRC-50DX - Aligning Illumination and Focusing

Topcon TRC-50DX
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33
BASIC OPERATIONS
3 The flash level is automatically changed according to photography modes.
Set the flash level.
Set flash level with the and the .
4 Tell the patient to watch the external fixation target or the inter-
nal fixation target (only in Type IA).
5 Align the illumination light with the patient's pupil.
Set the illumination level with the .
You can check the set level by looking at the illumination level
display on the control panel.
How to properly align the illumination light:
First look at the patient's pupil from the side of the instrument. To make the illumination light
coaxial to the patient's pupil, move roughly the main body to a position about 40mm in front of
the patient's eye with the joystick positioned straight, and then, adjust the joystick up and down/
right and left. Then, finely adjust the joystick to image the ring slit on the cornea coaxially with
the patient's pupil.
Ring slit images on cornea
Images observed by viewfinder
Images acquired by camera
FLASH SELECTOR SWITCH FLASH CORRECTION SWITCH
Flash correction switch
Flash selector switch
ILLUMINATION LEVEL KNOB

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