Operation Manual
42
6.4. Red-green mask
Select any optotype chart.
1.
Press
to activate mask.
2.
If you have red-green mask active you can still use Arrows to change
optotypes.
3.
Press
again to deactivate mask.
Red-green mask can be used only with optotype charts.
You can not display red-green mask over chart with only one
optotype.
Pic.21.
Red-green mask
WARNING !
WARNING !
Содержание TCP-2000
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