Snellen Chart
Current as of: May 5, 2019
Author: Healthwise Staff
Medical Review:Kathleen Romito, MD – Family Medicine & Adam Husney, MD – Family Medicine
Adapted from the National Eye Institute, U.S. National Institutes of Health. Available online: http://www.nei.nih.gov A Snellen chart is used to test far vision. It has several rows of letters. The letters on the top line are the largest; those on the bottom line are the smallest. You stand 20 ft (6 m) from the chart…