Zeiss Humphrey II-i series, Руководство пользователя

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General Operation
Humphrey Field Analyzer II-
i
series User Manual 2660021145640 A
2-10
System Setup
You access the System Setup screen by selecting the SYSTEM SETUP icon that is located on the Main
Menu screen. You may choose from a variety of selections on the two System Setup screens: the
main System Setup screen shown in
Figure 2.6 and the Additional Setup screen illustrated in
Figure 2.9 . Your selections will determine the mode in which your HFA II-
i
will power-up. An
explanation of the System Setup functions and procedures to alter the settings are described below.
Figure 2.6 The Main System Setup Screen
Language
The HFA II-
i
allows you to choose among English, German, Spanish, French, Italian, Japanese,
Portuguese, and Swedish languages. If you select a different language from the current language
set, the HFA II-
i
will reboot in that language automatically. The original language must be
re-selected in order to be reactivated.
Head Tracking (Model 750
i
only)
When Head Tracking is turned ON, the instrument moves the chin rest during a test to keep the
patient’s eye centered behind the trial lens holder. This action helps to reduce trial lens artifacts (test
points being blocked from the patient's view by the edge of the trial lens). This feature only works if
Gaze Tracking has been initialized successfully and the trial lens holder is in the Up position. For
more information, see
“Head Tracking (Model 750i),” on page 5-5 .
Vertex Monitor
(Model 750
i
)
When the Vertex Monitor is turned ON, a beep sounds and a message displays if the patient’s head
is too far back from the trial lens during a test. This helps to eliminate the trial lens as a source of
visual field defects. This feature works only if Gaze Tracking has been initialized successfully and the
trial lens holder is in the Up position. For tips on using this feature, see
“Vertex Monitor (Model
750i),” on page 5-6 .