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Ishihara test

Pronunciation: ish-e-hah'rah

Definition: a test for color vision deficiency that uses a series of pseudoisochromatic plates on which numbers or letters are printed in dots of primary colors surrounded by dots of other colors; the figures are discernible by patients with normal color vision.

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.

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