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This standardized and Modified ETDRS chart with Sloan letters in Snellen equivalents, features a guide for selecting dioptic power of reading add based on test results at two distances. Acuity range differs depending on distance. Two-sided with different scrambled optotypes on each side.
Line sizes range from 20/400 to 20/16 equivalent at 40cm or 20/800 to 20/32 equivalent at 20cm. Includes 40cm (16in) cord ensuring proper viewing distance. ETDRS Near Card measures 7" x 9" (18cm x 23cm).
Medex SKU: GL-925300