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 | Most acuity vision charts have the patient identify single letters in a line. Continuous text chart are designed to simulate everyday reading tasks for patients by using actual sentences. These sentences are calibrated to have a specific number of | - 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
| This near point vision chart features two smaller groups of optotypes for repetitive testing. This is helpful because two groups will lessen the possibility of unwanted memorization while testing. Non memorization leads to more accurate vision | The Radner Charts are available in English, Spanish, Dutch, Swedish, Hungarian and German. A French and Portuguese version is under development. The Radner reading chart is a highly standardized multilingual reading test system that was |