Pelli-Robson Contrast Sensitivity Chart

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Two charts with a different sequence of letters. The Pelli-Robson charts utilize letters of the same size but with gradually reducing contrast to provide a quick means of assessing patient sensitivity thresholds. For use at one meter. Particularly useful for those patients with 20/20 vision, but who nevertheless complain of “poor”, “hazy” vision, such as in cases of cataract, glaucoma and retinal and optic nerve pathology. Charts measure 33″ x 39″ (82 x 97 cm). Charts come with a scoring pad and instructions for use.