nyctalopia

nyctalopia definition - medical

nyc·ta·lo·pi·a (nĭkˌtə-lōˈpē-ə)

noun
A condition of the eyes in which vision is normal in daylight or other strong light but is abnormally weak or completely lost at night or in dim light and that results from vitamin A deficiency, disease, or hereditary factors. Also called night blindness.

Related Forms:

  • nycˌta·loˈpic (-lōˈpĭk, -lŏpˈĭk) adjective

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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