Ishihara


name for the popular type of colorblindness test, 1924, from Japanese ophthalmologist Shinobu Ishihara (1879-1963), who devised it in 1917.

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    [ish-ee-hahr-uh] /ˌɪʃ iˈhɑr ə/ noun, Ophthalmology. 1. a test for determining color blindness by means of a series of cards each having colored dots that form one pattern to the normal eye and a different pattern to the eye that is color-blind. Ishihara test Ish·i·ha·ra test (ĭsh’ĭ-hä’rə) n. A test for color-vision deficiency employing a […]

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