hyperopia [hahy-per- oh-pee- uh] Examples Word Origin See more synonyms for hyperopia on Thesaurus.com a condition of the eye in which parallel rays are focused behind the retina, distant objects being seen more distinctly than near ones; farsightedness (opposed to myopia). Origin of hyperopia
First recorded in
hy·per·me·tro·pi·a [hahy-per-mi- troh-pee- uh] /ˌhaɪ pər mɪˈtroʊ pi ə/
Related forms hy·per·op·ic , [hahy-per- op-ik, - oh-pik] /ˌhaɪ pərˈɒp ɪk, -ˈoʊ pɪk/ adjective
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for hypermetropia Historical Examples of hypermetropia
hypermetropia, signifies that the eyeball is too short or the lens too flat.
Limits of error in the subjective and objective determination of
Ophthalmoscopically with atropine the same degree of
hypermetropia. Hypermetropia was found then in 47 per cent of all the cases.
Donders declares no other conclusion to be possible, than this, that the
hypermetropia is the cause of the squint. British Dictionary definitions for hypermetropia hypermetropia hypermetropy ( ˌhaɪpəˈmɛtrəpɪ) Derived Forms hypermetropic ( ˌhaɪpəmɪˈtrɒpɪk) or hypermetropical, adjective Word Origin for hypermetropia
C19: from Greek
hupermetros beyond measure (from hyper- + metron measure) + -opia inability to see near objects clearly because the images received by the eye are focused behind the retina; long-sightedness Also called: hypermetropia, hypermetropy Compare myopia, presbyopia Derived Forms hyperopic ( ˌhaɪpəˈrɒpɪk), adjective
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
Word Origin and History for hypermetropia n.
1884, Modern Latin, from
hyper- + Greek ops "eye" (see eye).
Online Etymology Dictionary, © 2010 Douglas Harper
hypermetropia in Medicine hypermetropia [hī′pər-mĭ-trō ′pē-ə] An abnormal condition of the eye in which vision is better for distant objects than for near objects. It results from the eyeball being too short for light rays to properly focus on the retina, thus forming a blurred image. farsightedness hypermetropia Related forms hy ( ′per•ope′ hī) ′pə-rōp′ n. hy′per•o ( ′pic -ō) ′pĭk, -ŏp ′ĭk adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
A defect of the eye that causes light to focus behind the retina instead of directly on it, resulting in an inability to see near objects clearly. Hyperopia is often caused by a shortened eyeball or a misshapen lens. Also called farsightedness Compare myopia.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.