Refractive Error Study in Children: Sampling and measurement methods for a multi-country survey
Refractive Error Study in Children: Sampling and measurement methods for a multi-country survey
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DOI：
10.1016/s0002-9394(99)00455-9
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发表时间：
2000-04-01
影响因子：
4.2
通讯作者：
Ellwein, LB
中科院分区：
文献类型：
--
作者：
Negrel, AD;Maul, E;Ellwein, LB
目的：儿童屈光不正研究旨在评估不同种族和文化背景的儿童屈光不正和视力损害的患病率。方法：采用整群抽样的方法获得5~15岁儿童的横断面样本。目前的、未矫正的和最佳矫正的视力以及睫状肌麻痹下的屈光不正是主要的结果指标。结果：对研究设计和样本量计算、调查计数和眼科检查方法、质量保证监测、数据分析和统计方法进行了描述。结论：研究设计、样本量和测量方法确保了在目标人群中能够以合理的精度估计特定年龄和特定性别屈光不正的患病率。由于方法的共性，不同伦理起源和文化背景下的研究结果的比较是可能的。《眼科杂志》2000；129：421-426。(C)2000，Elsevier Science Inc.版权所有。)
PURPOSE: The Refractive Error Study in Children was designed to assess the prevalence of refractive error and vision impairment in children of different ethnic origins and cultural settings.METHODS: Population based cross-sectional samples of children 5 to 15 years of age were obtained through cluster sampling. Presenting, uncorrected, and best-corrected visual acuity, along with refractive error under cycloplegia, were the main outcome measures. Amblyopia and other causes of uncorrectable vision impairment were determined,RESULTS: Study design and sample size calculations, survey enumeration and ophthalmic examination meth ods, quality assurance monitoring, and data analyses and statistical methods are described.CONCLUSIONS: The study design, sample size, and measurement methods ensure that the prevalence of age-specific and sex-specific refractive error can be estimated with reasonable accuracy in the target populations. With commonality of methods, a comparison of findings between studies in different ethic origins and cultural settings is possible. (Am J Ophthalmol 2000;129:421-426. (C) 2000 by Elsevier Science Inc. All rights reserved.).