Elliptech Control Unit
The VS-V Elliptech Soft-Touch hand control unit makes for easy operations of the vision screener. The comfortable design makes it suitable for hand-held or desktop operation. The hand control can not be used simultaneously with the Visionary Software.
By pressing the appropriate buttons on this panel, you can:
- Advance or reverse stereo tests
- Select near, far, or intermediate test distances
- Occlude either of the subject's eyes
- Selectively light the peripheral vision test lamps
- Perform night-vision tests
A) Occlusion is controlled by pushing separate buttons for each eye.
B) Stereo tests are listed on the front of the control unit. A lamp next to each test number signals when that target is being presented.
C) Peripheral vision target lamps are lit by pressing these buttons. A signal lamp indicates which eye is being tested.
D) The test distance buttons will switch the lens to the corresponding distance. (The +1.50 Diopter lens is put in place by pushing the "INT 1" button. The +2.00 Diopter lens is put in place by pushing the "INT 2" button.)
E) The Day/Night switch allows the examiner to toggle between simulated bright "real-life" daytime illumination and dim light nighttime illumination.
F) 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.
G) Head Sensor override button allows operation of the machine without an examinee's head properly placed inside the headrest.