Zeiss HUMPHREY 720i, User Manual

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11-6 KINETIC TESTING
REV. B 02/03 PN 51680-1 HUMPHREY FIELD ANALYZER II - i series
Note: Asterisks (*) below denote the default setting.
Stimulus Size
This drop-down menu allows the user to set the size of the test stimulus. Sizes can be set to one
of the five standard Goldmann test stimulus sizes. They are designated by Roman numerals I*
through V.
Stimulus Intensity
This drop-down menu lists numbers corresponding to the first (“coarse”) Goldmann intensity
filter, which helps to determine the intensity of the stimulus. The values corresponding to the
various standard Goldmann filters are:
Goldmann Humphrey
Filter Number Intensity
1 25 dB
2* 20 dB
3 15 dB
4 10 dB
Stimulus Intensity Modifier
This drop-down menu lists the letters corresponding to the second (“fine”) Goldmann
intensity filter, which also helps to determine the intensity of the stimulus. The values
corresponding to these filters are:
Goldmann Humphrey Goldmann Humphrey
Filter Letter Intensity Filter Letter Intensity
A +4 dB A´ +24 dB
B +3 dB B´ +23 dB
C +2 dB C´ +22 dB
D +1 dB D´ +21 dB
E* +0 dB E´ +20 dB
The actual intensity of the test stimulus is equal to the combined values of the Stimulus
Intensity and the Stimulus Intensity Modifier. For example, a stimulus with an Intensity of “3”
and Intensity Modifier of “C” will have a resultant intensity of 17 dB (15 + 2).
Stimulus Speed
This drop-down menu lets the user set the speed, in degrees per second, at which the stimulus
moves in the test bowl. Users can choose any test speed between 1 and 9 degrees per second.
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