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Do not base your order on the picture presented.
Adult standardized Sloan Letter low vision chart contains three lines in LogMAR sizes of 20/400, 20/200 and 20/160.
Vision chart fits in ESV1018 or Professional Series Good-Lite illuminated cabinet.
Testing distance is 20 feet/6 meters; size 10"x18" (25.4 cm x 45.7 cm)
Medex SKU: GL-800741