Jacob A, Thomas R, Koshi S P, Braganza A, Muliyil J
Schell Eye Hospital, Christian Medical College, Vellore, India.
Indian J Ophthalmol. 1998 Jun;46(2):81-6.
Glaucoma is fast emerging as a major cause of blindness in India. In order to estimate the prevalence of primary open angle glaucoma (POAG) and primary angle closure glaucoma (PACG) in an urban South Indian population, we examined 972 individuals aged 30-60 years, chosen using a cluster sampling technique from 12 census blocks of Vellore town. They underwent a complete ocular examination, including applanation tonometry and gonioscopy, at the Medical College Hospital. Characteristic field defects on automated perimetry was a diagnostic requisite for POAG. Prevalence (95% CI) of POAG, PACG, and ocular hypertension were 4.1 (0.08-8.1), 43.2 (30.14-56.3), and 30.8 (19.8-41.9) per 1,000, respectively. All the PACG cases detected were of the chronic type. Hitherto unavailable community-based information on primary glaucoma in our study population indicates that PACG is about five times as common as POAG.
青光眼正迅速成为印度失明的主要原因。为了估计印度南部城市人群中原发性开角型青光眼（POAG）和原发性闭角型青光眼（PACG）的患病率，我们对972名年龄在30至60岁之间的个体进行了检查，这些个体是使用整群抽样技术从韦洛尔镇的12个普查街区中选取的。他们在医学院医院接受了全面的眼部检查，包括压平眼压测量和前房角镜检查。自动视野计上的特征性视野缺损是POAG的诊断必要条件。POAG、PACG和高眼压症的患病率（95%置信区间）分别为每1000人4.1（0.08 - 8.1）、43.2（30.14 - 56.3）和30.8（19.8 - 41.9）。所有检测出的PACG病例均为慢性类型。我们研究人群中此前无法获得的基于社区的原发性青光眼信息表明，PACG的常见程度约为POAG的五倍。
