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Elliptech Control Unit
The newly designed DVS-V Elliptech Soft-Touch hand control unit makes for easy operations of the vision
screener. By pressing the appropriate buttons on this compact panel, the stereo tests can be advanced or re-
versed, the subject’s eyes occluded, and the peripheral vision test lamps selectively lit. The comfortable de-
sign makes it suitable for either hand-held or desk-top operation.
A) Occlusion is controlled by pushing separate buttons for each eye.
B) Stereo tests are listed on the control key card. A lamp next to each test description signals when that tar-
get is being presented.
C) Peripheral vision target lamps are lit by pressing these buttons. A signal lamp indicates which eye and
angle is being tested.
D) The day/night switch allows the examiner to toggle between simulated bright “real-life” daytime illumi-
nation and dim light nighttime illumination.
E) Touch these buttons and the stereo target drum either advances or reverses to the next test. Keep button
depressed and drum will continue to rotate.
F) Head Sensor override button allows the operator the option of operating the screener without the use of
the sensor. Overriding the sensor allows the operation of the machine without an examinee’s head prop-
erly placed inside the headrest. Overriding the sensor is not recommended.
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