[ hem-ee-uh-nop-see-uh ]
/ ˌhɛm i əˈnɒp si ə /

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

Medicine definitions for hemianopsia


[ hĕm′ē-ə-nŏpsē-ə ]


Loss of vision in one half of the visual field of one or both eyes.

Related forms

hem′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.