5
Fifth: Ready Light: Green color; this will light when the subject
applies pressure to the headrest trigger and is in the proper
position to be tested.
MIDDLE ROW: Perimeter Test
First: Yellow Color: 45° nasal perimeter test. When the switch is
held down, a momentary light will flash in the face plate. The
light will appear on the opposite side from the side you are
testing.
Second: Blue Color: 55° temporal perimeter test
Third: Blue Color: 70° temporal perimeter test
Fourth: Blue Color: 85° temporal perimeter test
These switches are momentary. They will only flash as long as
pressure is applied and will flash along the side you are testing. The
same switches are used for testing both right and left sides. Turn the
eye switch off for the eye not being tested.
BOTTOM ROW: Test Switches
First: TEST #1: White color; depress switch and test will be
illuminated. Press again to turn illumination off when test is
finished. Proceed to TEST #2.
Second, Third and Fourth: TEST #2, #3 AND #4: White color; same as
above. If you are only doing one test, you can leave it on and
the light will go off or on automatically as the subjects apply
pressure to the headrest trigger.
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