10 ft: Illiterate Tumbling E (9 Line) Chart SC 5 m for repetitive testing

5 m for repetitive testing (20/50

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10 ft: Illiterate Tumbling E (9 Line) Chart SC 5 m for repetitive testing(9" x 14") Illiterate Tumbling E optotype chart for vision testing at 10 feet. This traditional design is great for vision screening in multiple languages. May be wall mounted or used with illuminated cabinets (66003, 66004, 66016, 66090). The Illiterate Tumbling E optotypes are considered to be the closest to gratings, have the best acuity thresholds, and are some of the most reliable of alternative visual acuity charts. Chart Distance: 3 m 10 ft