|
FAA EXAMINATION PROCEDURES
A. Equipment
1. Fifty-inch square black matte surface wall
target with center white fixation point; 2 millimeter white test object
on black-handled holder.
2. Alternative procedure (Standard Perimeter
below)
B. Techniques
1. Wall target.
a. The applicant should be seated 40 inches from
the target.
b. An occluder should be placed over the applicants
right eye.
c. The applicant should be instructed to keep the
left eye focused on the fixation point.
d. The white test object should be moved from the
outside border of the wall target toward the point of fixation
on each of the eight 45-degree radials.
e. The result should be recorded on a worksheet as
the number of inches from the fixation point at which the
applicant first identifies the white target on each radial.
f. The test should be repeated with the applicants
left eye occluded and the right eye focusing on the fixation point.
ALTERNATIVE PROCEDURES
I.
A
standard perimeter may be used in place of the above procedure. With this method, any
significant deviation from normal field configuration will require evaluation by an
ophthalmologist.
II. Direct
confrontation. This is the least acceptable alternative since this tests for peripheral
vision and only grossly for field size and visual defects. The Examiner, standing in front
of the applicant, has the applicant look at the examiner’s nose while advancing two
moving fingers from slightly behind and to the side of the applicant in each of the four
quadrants. Any significant deviation from normal requires ophthalmological evaluation.
If an applicant fails to identify the target in any
presentation at a distance of less than 23 inches from the fixation point, an
ophthalmologist’s evaluation must be obtained.
|
