Operation Manual
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All signs on the screen have the same sharpness degree.
When you press contrast adjustment buttons then contrast
changes in the same way for all rows.
More than one version of every stimulus displayed on the screen
is always available. To view all available optotypes of a specific
size, please use right and left Arrows.
5.2.4. Snellen Contrast type chart presentation
Same as ‘Snellen modified’ but each line is displayed in different contrast level.
All charts on single screen have the same sharpness degree.
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