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[am-blee-oh-pee-uh] /ˌæm bliˈoʊ pi ə/
noun, Ophthalmology
dimness of sight, without apparent organic defect.
1700-10; < New Latin < Greek amblyōpía, equivalent to amblý(s) dull + -ōpiā -opia
Related forms
[am-blee-op-ik] /ˌæm bliˈɒp ɪk/ (Show IPA),
adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for amblyopia


impaired vision with no discernible damage to the eye or optic nerve
Derived Forms
amblyopic (ˌæmblɪˈɒpɪk) adjective
Word Origin
C18: New Latin, from Greek ambluōpia, from amblus dull, dim + ōps eye
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for amblyopia

1706, "weakening of the eyesight," medical Latin, from Greek amblyopia "dim-sightedness," noun of action from amblys "dulled, blunt" + ops "eye" (see eye (n.)). Related: Amblyopic.

Online Etymology Dictionary, © 2010 Douglas Harper
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amblyopia in Medicine

amblyopia am·bly·o·pi·a (ām'blē-ō'pē-ə)
Dimness of vision, especially when occurring in one eye without apparent physical defect or disease.

am'bly·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.
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Encyclopedia Article for amblyopia

reduction in vision in one or both eyes due to abnormal visual experience in early childhood, leading to functional changes in the visual centres of the brain. These changes result from eye-related problems that degrade or distort images received by the brain. The most common causes are misalignment of the eyes (strabismus) and uncorrected (usually asymmetric) refractive errors (e.g., farsightedness, nearsightedness, or astigmatism). Other conditions that affect the clarity of vision, such as congenital cataracts, can also cause amblyopia. In each of these situations the brain receives inferior or inappropriate visual information, which it suppresses over time.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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