eVO 350
INSTRUCTIONS FOR USE
12
8126300-795
eVO 350
Issue 1.2
Printed on June,2020
OPERATION
1. Turn on the power using the On/Off switch located on the
front of the Power Supply Assembly. Brightness can be
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.
3. Position the light onto the flat surface of the focusing rod
and adjust the pupillary distance and focus of the eyepieces
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.
NOTE:
The thinnest line will allow for greater accuracy.
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
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
figure- 14.
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.
NOTE:
The accuracy of this rough adjustment should be
checked by the naked eye. The fine adjustment is performed
while observing the slit through the microscope.
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.
NOTE:
Lock the base whenever the lamp is not in use.
Height
Lock
Projected
Slit
Figure-12 Focus on Slit
Canthus
Mark
Chinrest
Elevation
Handle
Figure-13 Adjust Patient Height
Adjust Lamp
Base
Figure-14 Adjust Height
Slit
Width/Rotation
Knob
Figure-15 Adjust Slit Width
