exotropia

exotropia

 [ek″so-tro´pe-ah]

strabismus in which there is permanent deviation of the visual axis of one eye away from that of the other, resulting in diplopia; called also walleye and divergent strabismus. adj., adj exotro´pic.

Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

ex·o·tro·pi·a

(ek'sō-trō'pē-ă),

That type of strabismus in which the visual axes diverge; may be paralytic or concomitant, monocular or alternating, constant or intermittent.

Synonym(s): divergent squint, divergent strabismus, exodeviation (2) , external squint, wall-eye (1)

[exo- + G. tropē, turn]

Farlex Partner Medical Dictionary © Farlex 2012

exotropia

(ĕk′sō-trō′pē-ə)

n.

A form of strabismus in which one or both of the eyes deviate outward. Also called walleye.

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ex′o·trop′ic (-trŏp′ĭk, -trō′pĭk) adj.

The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

strabismus

Nonparallel positioning or movement of the eyes—usually of the vertical axis—due to decreased binocular muscle coordination with loss of stereoscopic vision and inability to focus simultaneously on a single point.
 
Aetiology
Extraocular muscle defects, neurotoxins, blindness, mechanical defects, unilateral vision obstruction in childhood, various brain disorders or systemic diseases, amblyopia, paralytic shellfish poisoning, botulism, haemangioma near eye, Guillain-Barré syndrome, Apert syndrome, Noonan syndrome, Prader-Willi syndrome, trisomy 18, congenital rubella, incontinentia pigmenti, cerebral palsy, Laurence-Moon-Biedl syndrome, pseudohyperparathyroidism.

Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

exotropia

Divergent or external strabismus, wall eye Ophthalmology A form of strabismus characterized by a permanent deviation in the visual axis of one eye away from the other, causing double vision or diplopia. See Dipolopia.

McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

ex·o·tro·pi·a

(ek'sō-trō'pē-ă)

That type of strabismus in which the visual axes diverge; may be paralytic or concomitant, monocular or alternating, constant or intermittent.
Synonym(s): divergent strabismus, exodeviation (2) , wall-eye.

[exo- + G. tropē, turn]

Medical Dictionary for the Health Professions and Nursing © Farlex 2012

exotropia

Divergence of the lines of vision of the two eyes. Divergent squint. In exotropia one eye points at the object of regard, the other is directed outwards. In exotropia acquired in adult life there is usually double vision (diplopia). In childhood, the false image may be suppressed and long-term visual acuity may be affected in one eye. See also ESOTROPIA.

Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005