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Esotropia and high ac/a ratio; therapy

By Risović Dušica J.

Abstract

We have treated 55 children with accommodative esotropia and high AC/A ratio with progressive addition lenses, measured by heterophoria method. All of them wear full hyperopic refraction for distance and addition of +1,00 to 3,5 spheres for near vision. The minimal add that allowed the maximal reduction in the near deviation was prescribed appointed to follow-up control three months after the use of the new lenses, and thereafter every six months. A progressive reduction of the abnormally high AC/A ratio (difference between distance and near deviation measurements) showed 45 children (81,81%) but ten of them (18,19%) deteriorated into non- accommodative esotropia requiring surgical treatment. The age of initial use of progressive-addition lenses ranged from 26 months to 7 years (average: 63,2 months). The age of onset of the esotropia ranged from 7 months to 82 months (average: 28,7 months). The initial add was of +3,00 diopters in 39 children (70,8%). The mean add prescription for whole study group was 2,96 diopters. A progressive improvement of the AC/A ratio achieving normal after a mean of 18 to 24 months in a significant number of cases

Topics: Accommodation, AC/A ratio, progressive lenses, esotropia, Medicine (General), R5-920, Medicine, R, DOAJ:Medicine (General), DOAJ:Health Sciences
Publisher: Serbian Medical Society
Year: 2003
DOI identifier: 10.2298/SARH0302036R
OAI identifier: oai:doaj.org/article:1f8669fc38704bda9cec7a6af9ed4d67
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