Chart(Distance): Distance Clinical Vision Acuity Testing Chart Set - Sloan Letters (20ft/6m)

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A set of 3 Sloan Letters distance charts. Each chart is foldable and features line sizes ranging from 20/200 to 20/50 (6/120 to 6/3) equivalent on one side, and 20/40 to 20/10 on t he other. A guide on how to score the test is printed on each foldable chart. Form 1 starts with N S Form 2 starts with C Z Form 3 starts with K D Show more