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    Snellen Chart

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    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, cover one eye, and read the smallest row of letters you can see on the chart.

    ByHealthwise Staff
    Primary Medical ReviewerKathleen Romito, MD - Family Medicine
    Specialist Medical ReviewerChristopher J. Rudnisky, MD, MPH, FRCSC - Ophthalmology

    Current as ofSeptember 9, 2014

    WebMD Medical Reference from Healthwise

    Last Updated: September 09, 2014
    This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.

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