aniseikonia

American

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

noun

Ophthalmology.

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

aniseikonia British

/ ˌænaɪsaɪˈkəʊnɪə /

noun

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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Though only about 1,000 cases had been observed, he estimated that 20% to 30% of all eye sufferers may be affected by a condition which he named aniseikonia.

From Time Magazine Archive

I feel that before aniseikonia was discovered we were somewhat in the position of the astronomers studying the solar system before all the important planets had been located.

From Time Magazine Archive

Aniseikonia is Greek for "unequal images."

From Time Magazine Archive

The Dartmouth researchers are not yet sure of aniseikonia's cause.

From Time Magazine Archive

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