Collection: 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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  • LEA NUMBERS® 15-Line Translucent ETDRS-Style Distance Charts for ESV3000 Cabinet

    LEA NUMBERS® 15-Line Translucent ETDRS-Style Distance Charts for ESV3000 Cabinet

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  • ETDRS Low Contrast LEA NUMBERS® Clinical Trial Charts

    ETDRS Low Contrast LEA NUMBERS® Clinical Trial Charts

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