Designing A Custom Kinetic Test Pattern; Order Of Stimulus Presentation; The Nasal / Temporal Relationship For The Right Eye - Zeiss HUMPHREY 720i User Manual

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DESIGNING A CUSTOM
KINETIC TEST PATTERN
Order of stimulus
presentation
REV. B 02/03 PN 51680-1
Custom Kinetic test patterns may also be created and stored. This is similar to the custom static
Screening and Threshold tests described in Section 10. Custom Kinetic tests are always created
for the right eye only. When the left eye is tested, the HFA II will flip the test pattern to accom-
modate for the mirrored physiological differences.
Note: You may begin testing with either the right or left eye.
Custom Kinetic tests must be created by the user. Once created, they may be saved and then
accessed for testing by selecting the SHOW TEST LIBRARY button from the Main Menu screen
then choosing the KINETIC button. There is room for ten (10) Kinetic tests to be stored on the
Kinetic Tests menu at any time. Some Kinetic tests may need to be deleted if the menu is full.
(nasal)
°
135
°
180
°
235
Figure 11.6: The Nasal / Temporal Relationship for the Right Eye
Remember, the Custom test pattern you are designing must be for the right eye. Therefore,
temporal points will be plotted to the right (meridians 0-89 and 271-359) and nasal test points
will be to the left (meridians 91-269). Testing for the left eye will automatically be reversed.
Example: Programming a point to be presented along the 45 degree meridian (in the
temporal visual field) for the right eye will be presented along the 135 degree meridian
(temporal visual field) for the left eye.
You have two choices for the display of the test points. One way is to have the HFA II randomize
the stimuli for testing. You may enter the points in any order you choose as you create your
Custom Kinetic test. You will probably wish to enter the meridians to be tested in a logical
sequence (Example: 20 degrees, 40 degrees, 60 degrees ...).
The second way is to enter the points exactly in the order you wish to have them presented. If
you wish to test the superior temporal quadrant first, be sure to select the meridians between 0
degrees and 90 degrees at the start of your new custom test. If you wish to test at 20 degrees,
then at 40 degrees and then at 60 degrees for the right eye (180, 160, 140 degrees for the left
eye), make sure you enter the 20, 40 and 60 degree meridians in that order. Remember: the
order you list the meridians will be the exact order of presentation every time the test is run.
°
90
30
45
20
blind spot
10
°
0
0
20 40
10
20
30
°
315
270
HUMPHREY FIELD ANALYZER II - i series
KINETIC TESTING
(temporal)
°
50 60
°