Clin Exp Optom 2021 Jun 17:1-6. Epub 2021 Jun 17.
Southern California College of Optometry, Marshall B. Ketchum University, Fullerton, CA, USA.
A scoring criterion of three-or-more letters correct on a line results in the most equivalent visual acuity score to letter-by-letter scoring. Using the criterion of three-or-more letters correct on a line of five letters to measure a line visual acuity is common. In this study, different line acuity criteria are compared to letter-by-letter visual acuity scoring to determine which criterion is the most accurate as well as least variable. Read More