"Revised" ETDRS visual acuity chart is accepted in clinical studies, research and clinical examinations supported and sponsored by the National Eye Institute.
For vision testing at 2.5 meters (8.3 ft.)
Acuity range 25.2M to 1.2M (20/200, 6/60 to 20/10, 6/3 equiv.)
Measures 62 X 65 cm (24.5 X 25.5 in.)
Eye chart fits ETDRS Illuminator Cabinet CAT. NO. 2425
Can also be wall mounted
Similar to the "Original" Series ETDRS charts, the "2000" Series ETDRS charts also feature several equivalents listed on the sides of the chart. They include feet, meters, decimal and LogMar. The ETDRS chart can be used to test at 2.5 meters (8.3 ft.) but can be recorded easily to any other visual acuity unit of measure.
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