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aniseikonia

American  
[an-uh-sahy-koh-nee-uh] / ˌæn ə saɪˈkoʊ ni ə /

noun

Ophthalmology.

  1. a defect of vision in which the images at the retinas are unequal in size.

aniseikonia British  
/ ˌænaɪsaɪˈkəʊnɪə /

noun

  1. a condition caused by a defect in the lens of the eye in which the images produced in the two eyes differ in size or shape

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • aniseikonic adjective

Etymology

Origin of aniseikonia

From New Latin, dating back to 1930–35; aniso-, eicon, -ia

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.