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ISSN 1561-3070 (Electronic)

2013, Number S1

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Rev Cub Oftal 2013; 26 (S1)

Risk factors present in failed binocular vision of patients operated on from congenital esotropia

Méndez STJ, Hernández SJR, Naranjo FRM, Castro PPD, Estévez MY, Padilla GC

Language: Spanish
References: 15
Page: 553-561
PDF size: 367.38 Kb.


ABSTRACT

Objective: to determine the risk factors that have an impact on failing to achieve binocular vision in patients operated on from congenital esotropia.
Methods: a case-series study conducted in patients operated on from congenital esotropia at the Pediatric Ophthalmology service of "Ramón Pando Ferrer" Cuban Institute of Ophthalmology from January 2007 through May 2010. The following variables were analyzed: fusion, stereopsis, stability of the ocular alignment, surgical age, number of surgeries, amblyopia, and refractive defect.
Results: in this group, 57.7 % of the patients reached fusion and 30.8 % achieved stereopsis, in a range of 3000 to 400 arc seconds. The risk of not developing fusion and the risk of not developing stereopsis in operated children aged over 18 months were 5 times higher and 4 times higher, respectively, than in children operated on before that surgical age. Those patients who lose the ocular alignment after one year of surgery were 3 times more likely to fail to achieve fusion than those who kept orthotopia. The probabilities of not developing stereopsis were almost twice greater in amblyopic children.
Conclusions: the early surgery is important to improve the visual functional results in those operated on from congenital esotropia. The loss of ocular parallelism and amblyopia were associated to unsuccessful development of fusion and stereopsis.


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