Prevalence and causes of blindness and visual impairment in Bangladeshi adults: results of the National Blindness and Low Vision Survey of Bangladesh
Prevalence and causes of blindness and visual impairment in Bangladeshi adults: results of the National Blindness and Low Vision Survey of Bangladesh
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DOI：
10.1136/bjo.87.7.820
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发表时间：
2003-07-01
影响因子：
4.1
通讯作者：
Johnson, GJ
中科院分区：
文献类型：
--
作者：
Dineen, BP;Bourne, RRA;Johnson, GJ
目的：了解孟加拉30岁及以上成年人的年龄、性别及致盲和视力损害的具体患病情况。方法：采用多阶段整群随机抽样方法，选取12 782名30岁及以上的孟加拉人作为全国代表性样本。多国办事处的分类与全国人口的城乡分布成正比。检查方案包括所有受试者的面谈、视力(VA)测试、自动屈光和视盘检查。对所有视力受损的受试者进行校正后的VA复测、白内障分级和扩张眼底检查。失明的定义(
Aim: To determine the age, sex, and cause specific prevalences of blindness and visual impairment in adults 30 years of age and older in Bangladesh.Methods: A nationally representative sample of 12 782 adults 30 years of age and older was selected based on multistage, cluster random sampling with probability proportional to size procedures. The breakdown of the cluster sites was proportional to the rural/urban distribution of the national population. The examination protocol consisted of an interview, visual acuity (VA) testing, autorefraction, and optic disc examination on all subjects. Corrected VA retesting, cataract grading, and a dilated fundal examination were performed on all visually impaired subjects. The definitions of blindness (