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3 Basic usage
9
Guide the patient's xation.
Use the external xation target to guide the patient's visual xation
until the part you want to photograph becomes visible through the op-
tical viewnder (eyepiece).
¿
Position the external xation target where the patient can x the vi-
sion with the eye not examined.
¿
If the patient's xation cannot be achieved with the eye not pho-
tographed, press the “LCD monitoring button”; then, select an
internal xation target using the “xation target selection button”,
or use the internal xation target (optional accessory) to guide the
patient's xation.
0
Adjust the focus.
Turn the “focusing knob” to adjust the focus. When you turn the focus-
ing knob, the focus dots on the LCD monitor move left and right. Turn
focusing knob so that the upper and lower focus dots come to form a
straight line.
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The focus dots are not displayed when using the diopter compensation lens. Adjust the focus as you
view the retinal image on the LCD monitor.
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Start the timer.
Press the “Timer button” on the right side panel at the same time that
uorescein is intravenously injected to the patient.
Elapsed time is indicated on the LCD monitor. The elapsed time at the
time of photography is also recorded in the photographed image.
^
Insert the barrier lter.
Press the “Barrier lter button” on the right side panel and insert the
barrier lter into the light path.