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 is available to isolate specific letters or rows.
Pic. 9. Example of Snellen type chart
TCP-2000 Chart Panel always starts with 20/400 visus ( 0,050
decimal ). The maximum size of the visus depends on distance
setting.
NOTE !
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