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6.2.8 Parameter Setup
1. Press to enter parameter setup interface.
2. Press
to select needed parameters to change parameter setup. When the item to
be set up is selected, the item is highlighted.
3. When the setup is finished, press to return to test interface.
The detailed parameters are set up as follows:
1) Display
a) Mirror: On and Off
Factory default: Off
Set normal chart display and mirror chart display.
b) Spacing: Small, Medium, Large. Factory default: Medium.
c) Arrange: Regular, V Type. Factory default: Regular.
d) Unit background: White, Black. Factory default: White.
e) Scrolling: By page, By line. Factory default: By page.
f) Crowding Bar: On, Off. Factory default: Off.
g) Contrast level: 4 Level, 6 Level, 8 Level. Factory default: 6 Level.
h) Initial optotype: Default, E, C, Alphabet, number. Factory default: Default.
Set defaulted start-up sight mark mode.
2) Calibration
Operators conduct settings and calibration of screen parameters according to their demands and
needs.
3) Test Distance: 1.5 m- 7.3 m, step: 0.1 m.
Factory default: 5 m
