[huh-rop-ter, haw-]

noun Ophthalmology.

a projection of the points in the visual field corresponding to the aggregate of points registering on the two retinas.

Origin of horopter

1695–1705; < Greek hór(os) boundary + optḗr one that looks
Related formshor·op·ter·ic [hawr-op-ter-ik] /ˌhɔr ɒpˈtɛr ɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for horopter



optics the locus of all points in space that stimulate points on each eye that yield the same visual direction as each other

Word Origin for horopter

C18: from Greek horos boundary + optēr, from ops eye
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

horopter in Medicine




The sum of all points in space whose images form at corresponding points on the plane of the retina.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.