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
Also called hemiscotosis.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Loss of vision in one half of the visual field of one or both eyes.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.