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Sloan Letter Translucent 20' Eye Chart 20/80-20/10
Sloan Letters Translucent 20' Acuity Chart is designed to be used with the Goodlite Model A,
A+ and Quantum Illuminated Eye Chart Cabinets. This durable 9" x 14" plastic acuity chart has proportional spaced line sizes from 20/80 to 20/10 and is designed for vision acuity testing at a viewing distance of 20 feet.