Rotchford A P, Johnson G J
International Centre for Eye Health (Department of Preventive Ophthalmology), Institute of Ophthalmology, London.
S Afr Med J. 2000 Oct;90(10):1030-2.
Cataract surgical coverage (CSC) is a useful indicator of the degree of success of a cataract intervention programme. However, because previously described methods are time-consuming and labour-intensive, they are rarely performed. This study describes a simple and inexpensive assessment of CSC based on screening of pensioners at pension delivery sites in a rural district.
Random cluster-based cross-sectional survey.
State pension distribution sites in Hlabisa, a rural district in KwaZulu-Natal, South Africa.
562 old-age pensioners.
Subjects found to be blind (visual acuity < 3/60) and those reporting a history of eye surgery were examined using a torch and direct ophthalmoscope by an ophthalmologist.
Cases of blindness due to operable cataract and post-cataract surgical subjects were identified.
CSC was found to be 38.5% (95% confidence interval 29.1-47.9%). Blindness prevalence was 10.3%, with 69.0% due to cataract.
白内障手术覆盖率（CSC）是白内障干预项目成功程度的一项有用指标。然而，由于先前描述的方法既耗时又费力，很少有人采用。本研究描述了一种基于对农村地区养老金发放点退休人员进行筛查的简单且低成本的CSC评估方法。
基于随机整群的横断面调查。
南非夸祖鲁 - 纳塔尔省农村地区赫拉比萨的国家养老金发放点。
562名养老金领取者。
由眼科医生使用手电筒和直接检眼镜对被发现失明（视力<3/60）以及报告有眼科手术史的研究对象进行检查。
确定可手术白内障导致的失明病例和白内障手术后的研究对象。
发现CSC为38.5%（95%置信区间29.1 - 47.9%）。失明患病率为10.3%，其中69.0%是由白内障导致的。
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