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eVO 300
INSTRUCTIONS FOR USE
OPERATION
1. Turn on the power using the On/Off switch located on the
front of the Power Supply Assembly. Brightness can be
Projected
Slit
adjusted by rotating the illumination level knob.
NOTE: The maximum position is for intermittent use only.
Continuous use will shorten the lamp/ LED life.
2. Insert the Focusing Rod in the pivot post of the instrument
body to make rough IPD and focus adjustments.
Figure-12 Focus on Slit
3. Position the light onto the flat surface of the focusing rod
Canthus
and adjust the pupillary distance and focus of the eyepieces
Mark
to suit the needs of the operator. Refer to Figure-12.
4. Using the Slit Width Knobs, adjust the projected slit so
that the thinnest slit is shown on the Focusing Rod. Refer to
figure -12 and 15.
Chinrest
NOTE: The thinnest line will allow for greater accuracy.
Elevation
Handle
5. Remove the Focusing Rod.
6. To position a patient, adjust the chin rest height by turning
the Chin rest Elevation Handle on the post of the Chin Rest
Figure-13 Adjust Patient Height
Assembly until the patient's canthus is in line with the
canthus mark on the chin rest post. Refer to figure-13.
7. Microscope elevation is adjusted by rotating the joystick
and observing the slit image through the Microscope Assem-
bly until slit is centered on the patient's cornea. Refer to
Lock
figure- 14.
Adjust Lamp
Base
Height
8. Move the slit lamp with the joystick held firmly and slight-
ly angled toward the patient, until the slit appears sharply on
the cornea.
Figure-14 Adjust Height
NOTE: The accuracy of this rough adjustment should be
checked by the naked eye. The fine adjustment is performed
Slit
while observing the slit through the microscope.
Width/Rotation
Knob
9. Tilt the Joystick, which is now held lightly at its upper end,
until the slit appears sharply at the depth of the eye which is
to be observed.
10. The horizontal motion of the base can be locked by tight-
ening the Base Locking Screw. Refer to figure-14.
Figure-15 Adjust Slit Width
NOTE: Lock the base whenever the lamp is not in use.
13
Issue 1.1
eVO 300
8126200-795
Printed on April,2016
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