exotropia


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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.

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.
[exo- + G. tropē, turn]

exotropia

/exo·tro·pia/ (-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.exotro´pic

exotropia

(ĕk′sō-trō′pē-ə)
n.
A form of strabismus in which one or both of the eyes deviate outward. Also called walleye.

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

exotropia

[ekstrō′fēə]
a deviation of the lines of sight between the two eyes in which the nonfixating eye is pointed outward. The eye has defective vision. Also called divergent squint, divergent strabismus.
enlarge picture
Exotropia

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.

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.

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]

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.

exotropia

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 divergent strabismus and walleye.
References in periodicals archive ?
The case series included sixteen consecutive patients with large-angle exotropia of more than 60 PD, who underwent unilateral two muscle surgery from January 2015--December 2016 at Regional Institute of Ophthalmology, Rajendra Institute of Medical Sciences, Ranchi, India were retrospectively analysed.
In this study, exotropia and esotropia were more common in children than they were in adults.
Varon de nueve aiios quien consulta por mala agudeza visual al que se le encontro una exotropia derecha intermitente de 14 Dp asociada a hipermetropia de+10,00 D en AO y enoftalmos.
BoNT injection is also utilized as an alternative to surgery in exotropia patients.
The prevalence of myopic among tropias was 10%, exotropia was more commonly seen than esotropia (5%).
Seven patients with esotropia and 17 patients with exotropia met the criteria.
74,75) Dexedrine, a stimulant used to treat attention deficit hyperactivity disorder, has been shown to increase foveation duration, improve stereopsis, reduce exotropia magnitude, and improve VA in a patient with IN associated with rod-cone dystrophy.
Hiles, Hoyme and McFarlane (1974) noted that 34% of 123 patients with DS had either esotropia or exotropia.
In patients with esotropia due to 6th nerve palsy, injection was given to the medical rectus muscle and in patients with exotropia due to partial 3rd nerve palsy without ptosis; injection was given to the lateral rectus muscle.
The reason for poor visual outcome in this study are 8 eyes (10%) have nystagmus, 6 eyes (7%) have exotropia and the reason in other eyes where visual improvement is not significant could be amblyopia.