A population based eye survey of older adults in Tirunelveli district of south India: blindness, cataract surgery, and visual outcomes
A population based eye survey of older adults in Tirunelveli district of south India: blindness, cataract surgery, and visual outcomes
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DOI：
10.1136/bjo.86.5.505
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发表时间：
2002-05-01
影响因子：
4.1
通讯作者：
Ellwein, LB
中科院分区：
文献类型：
--
作者：
Nirmalan, PK;Thulasiraj, RD;Ellwein, LB
目的：评估印度南部人群视力损伤、失明和白内障手术的患病率，并评估白内障手术后的 S 视力结果。 方法：采用整群抽样的方法，随机抽取居住在印度南部蒂鲁内尔维利地区 50 岁以上人群的横断面样本。通过挨家挨户的入户调查，列举了 28 个组群中的合格受试者。 2000 年初，在每个集群内的选定地点进行了视力测量和眼部检查，确定了视力受损的眼睛的主要原因
Aims: To assess the prevalence of vision impairment, blindness, and cataract surgery and to evaluate S visual acuity outcomes after cataract surgery in a south Indian population.Methods: Cluster sampling was used to randomly select a cross sectional sample of people greater than or equal to50 years of age living in the Tirunelveli district of south India. Eligible subjects in 28 clusters were enumerated through a door to door household survey. Visual acuity measurements and ocular examinations were performed at a selected site within each of the clusters in early 2000, The principal cause of visual impairment was identified for eyes with presenting visual acuity