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A condition in which the refractive power of one eye differs from that of the other.

[aniso- + Greek metron, measure; see meter1 + -opia.]

an·i′so·me·trop′ic (-trŏp′ĭk, -trō′pĭk) adj.
an·i′so·me·trop′i·cal·ly adv.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ænˌaɪsəʊməˈtrəʊpɪə; ˌænaɪ-)
(Medicine) an imbalance in the power of the two eyes to refract light
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


a defect of the eyesight in which each eye has a different power to refract light. Cf. isometropia. — anisometropic, adj.
See also: Eyes
-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.anisometropia - difference in the refractive power of the two eyesanisometropia - difference in the refractive power of the two eyes
eye condition - the condition of the optical properties of the eye
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Of the 11 male patients recruited in the study, 5 were diagnosed with anisometropia during medical screening for overseas employment.
* C-61797 / Anisometropia: does this mean we have to dispense single vision lenses?
But this therapy option has its limitations and may lead, e.g., in the case of severe residual anisometropia, to unsatisfactory outcomes.
Objectives: To assess and compare contrast sensitivity function in the previously amblyopic and non-amblyopic "normal" eyes of patients with microtropia and anisometropia who achieved 20/20 visual acuity after occlusion therapy.
Cause for defective vision in patients with craniofacial anomalies could be due to refractive errors, amblyopia which could be due to uncorrected refractive errors or strabismus, anisometropia or due to cataract.
Mechanisms for vision impairment in ectopia lentis include lenticular myopia, astigmatism, and anisometropia. Moreover, an anteriorly subluxated lens may induce elevation of intraocular pressure (IOP), thereby necessitating lens removal.2 In our practice, we have observed that non traumatic ectopia lentis usually presents in young age and carries risk of amblyopia in children if not optimally corrected with spectacles.
It was a pleasant surprise to note nestling in OT's January edition Mark Hickton's paper, Anisometropia: does this mean we have to dispense single vision lenses?
Her past ocular history was remarkable for anisometropia and congenital corectopia in the left eye.
In another original article in this issue, Comez et al., compared retinal and optic disc features measured by optical coherence tomography (OCT) in the amblyopic and non-amblyopic eyes of patients with myopic and hypermetropic anisometropia. They found no significant differences between the eyes in terms of mean retinal nerve fiber layer (RNFL) thickness, macular thickness, macular volume, or optic disc area, and concluded that the amblyopic process does not have a pronounced effect on the RNFL, macula, or optic disc (see pages 28-33).
Visually significant conditions like monocular or binocular visual deprivation, anisometropia, strabismus or abnormal visual environment during this period results in significant electrophysiological and anatomic abnormalities in striate cortex and in the lateral geniculate nucleus (LGN).
The prevalence of hyperopia, myopia, anisometropia, and astigmatism in all students and in cases with RE is illustrated in Table 2.