Linear Spaced Translucent Sloan Vision Chart

Precision Vision Verified independent store

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Two smaller groups 10/25 to 20/8 for repetitive eyesight testing (20/50 to 20/16 equiv.). Can be wall-mounted. Sloan optotypes were developed by Louise Sloan in 1959. She developed a set of 10 optotypes that had the same basis as the Snellen optotypes, the 5x5 grid. However, Sloan optotypes do not use serifs and use a geometric progression. This Sloan chart still uses Snellen equivalents and is calibrated for testing at 10 feet. Show more