Visual acuity, amblyopia, and ocular pathology in 12-to 13-year-old children in northern Mexico
Visual acuity, amblyopia, and ocular pathology in 12-to 13-year-old children in northern Mexico
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DOI：
10.1016/s1091-8531(02)42011-3
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发表时间：
2003-02-01
期刊：
影响因子：
1.6
通讯作者：
Sjöstrand, J
中科院分区：
文献类型：
--
作者：
Ohlsson, J;Villarreal, G;Sjöstrand, J
Purpose: The aim of this study was to establish visual acuity (VA) and the prevalence of amblyopia and other ocular disorders in a population of 12- to 13-year-old children in Mexico who have not been vision screened. Methods. A total of 1,035 12- to 13-year-old children were examined in a field study. The examination included VA, stereopsis, cover testing, refractive retinoscopy, and examination of the red reflex and posterior pole. In cases with unexplained subnormal VA, visually evoked potential/visually evoked response was also performed. Results. A greater than or equal to20/20 in at least one eye was found in 93% of the subjects. Bilateral VA less than or equal to20/40 was found in 0.3% of cases. None of the subjects had bilateral VA
