Method of measuring visual acuity and contrast sensitivity
Number of studies reporting | Distance (n=20) | Intermediate (n=4) | Near (n=20) | Contrast sensitivity (n=14) |
Snellen | 9 | 2 | ||
LogMAR | 7 | 2 | 4 | |
Regan 96% contrast chart | 2 | 2 | ||
Jaeger reading chart | 6 | |||
Rosenbaum near acuity card | 3 | |||
Sloan letters near acuity chart | 2 | |||
Pelli-Robson contrast sensitivity chart | 6 | |||
Vision Contrast Test System | 4 | |||
Other | De Nederlanders (1 study) Salzburg reading desk (1 study) | CGT-1000 contrast sensitivity instrument (1 study) FACT chart/OPTEC 6500 (1 study) | ||
Chart not specified or unclearly specified | 2 | 3 |
FACT, Functional Acuity Contrast Test.