Zeiss HUMPHREY 720i User Manual - page 82
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TEST PARAMETERS AND STRATEGIES
REV.B 02/03 PN 51680-1
HUMPHREY FIELD ANALYZER II -
i series
FastPac
™
FastPac decreases Full Threshold test time by about
40%. It follows a similar stair-stepping technique as
in Full Threshold, but uses 3 dB increments instead
of 4 dB and crosses the threshold only once.
Test Speed
Normal
Same as Screening Parameters
Slow
Same as Screening Parameters
Fixation Target
Central
Same as Screening Parameters
Small Diamond
Same as Screening Parameters
Large Diamond
Same as Screening Parameters
Bottom LED
Some tests have points in the superior visual field
which require a different fixation light than the Cen-
tral target in order to expand the superior field
range. The target used is the Bottom LED of the
Large Diamond.
Fixation
Gaze/Blind Spot
Same as Screening Parameters
Monitoring
(model 740i - 750i)
Gaze Track
Same as Screening Parameters
(model 740i - 750i)
Blind Spot
Same as Screening Parameters
Off
Same as Screening Parameters
Blue-Yellow
OFF/ON
Model 750i and model 745i (optional on model
740i) can perform Blue-Yellow testing. Blue-Yellow
testing uses a Size V blue stimulus presented on a
yellow background. Selecting the Blue-Yellow
option will cause the system to default to these
parameters. See “Blue-Yellow Testing” later in this
section for more information.
Threshold
Parameter
Description
Parameters
Settings
4.htp
3/14/03, 3:13 PM
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