ETDRS Vision Test Charts

ETDRS, stemming from the Early Treatment Diabetic Retinopathy Study, improves visual acuity testing with equal step size between rows and consistent letter spacing on a logarithmic scale, offering advantages over previous tests like Snellen and Sloan; often referred to as a LogMAR test, available in various formats, including back-lit charts for standardized luminance testing.

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  • Good-Lite Landolt "C" ETDRS Chart for 13 feet (4 meters) Scrambled

    Landolt "C" ETDRS Chart for 13 feet (4 meters) Scrambled

    $55.95
    $55.95
  • Good-Lite Landolt "C" ETDRS Chart for 13 feet (4 meters) Scrambled

    Landolt "C" ETDRS Chart for 13 feet (4 meters) Scrambled

    $55.95
    $55.95