achromatopsia

achromatopsia definition - medical

a·chro·ma·top·si·a (ā-krōˌmə-tŏpˈsē-ə, ə-krōˌ-) or a·chro·ma·top·sy (ā-krōˈmə-tŏpˌsē, ə-krōˈ-)

noun
A severe congenital deficiency in color perception, often associated with nystagmus and reduced visual acuity. Also called achromatic vision, monochromatism.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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