noun Ophthalmology.

any of several conditions in which there is blindness in half of the visual field, involving one or both eyes.

Also hem·i·a·no·pi·a [hem-ee-uh-noh-pee-uh] /ˌhɛm i əˈnoʊ pi ə/, hemiopia.

Origin of hemianopsia

First recorded in 1880–85; hemi- + an-1 + -opsia
Also called hemiscotosis.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for hemianopia

Historical Examples of hemianopia

British Dictionary definitions for hemianopia



loss of vision in either the whole left or the whole right half of the field of visionAlso called: hemianopsia (ˌhɛmɪænˈɒpsɪə)

Word Origin for hemianopia

C19: from hemi- + an- + Greek opsis sight
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

hemianopia in Medicine




Loss of vision in one half of the visual field of one or both eyes.
Related formshem′i•a•noptic (-nŏptĭk) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.