Zeiss Humphrey II-i series, User Manual

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Kinetic Testing
Humphrey Field Analyzer II-
i
series User Manual 2660021145640 A
13-24
You may add isopter lines to indicate the isopters on the screen.
Social Security Administration Kinetic Disability Test
The HFA II- i offers a special kinetic test authorized by the Social Security Administration. This test is
used to evaluate a patient’s visual field and creates a numerical score of the patient’s visual
disability. Eight (8) meridians are tested with a standardized stimulus (III 4 E). The stimulus moves at
a rate of 4 degrees per second. The test uses the full field starting point for the stimulus. Only one
isopter is determined. At the end of the test, the Humphrey Field Analyzer will calculate an Efficiency
Score and display this value on the printout. The exact values of the 8 points should also be printed
for your records and are included in the Numeric Values printout.
These meridians are randomly tested:
0, 45, 90, 135, 180, 225, 270, 315 degrees
1
Advance to the Kinetic Tests Library by the usual method. Press SSA
TEST KINETIC.
You are given the option of Automatic or Step by Step operation. The
Automatic mode will run to completion. Step by Step will give you the
option to retest a meridian. You can also use the Special Mapping fea-
tures at the end of the test. Special Mapping features will not change
the Efficiency Score. The Special Mapping features are described in
“Special Mapping,” on page 13-27 .