| Description | This near point chart features highly calibrated Sloan optotypes. They adhere to the Snellen 5x5 grid, equal blur at threshold, and equal difficulty. Also, each optotype is recognizable. This near vision chart also feature these optotypes in an ETDRS | - Measures 12 x 18 in
- White letters on black background
- Includes tables, procedures and instructions
- Funded by the NIH
- Increments range from 1.3 LogMar (20/400) to -0.5 Log Mar (20/6.3)
- Increments listed in 0.1 LogMar steps
- Viewing
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