Operation Manual
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5.2. Chart types
There are 4 types of chart type presentations:
1.
Snellen chart type
2.
LogMar Modified chart type
3.
Snellen Modified chart type
4.
Snellen Contrast chart type
5.2.1. Snellen type chart presentation
The Snellen chart remains the most popular chart design among clinicians. A range
of different optotypes can be displayed in Snellen. A single row or column can be
shown and a range of masks are available to isolate specific letters or rows.
Display area of the panel does not allow presenting more than one optotype sizes
0.05 to 0.25 at a time. To view all available optotypes for mentioned sizes please
use right and left Arrows. Table below lists number of optotype charts for each
size.
Pic.8.
Example of Snellen type chart
Summary of Contents for TCP-2000
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