目的:调查海南省三亚市郊≥50岁人群中低视力及盲的发病率并分析其原因。方法:随机抽取28个抽样单位的≥50岁人群共2569例进行调查。对调查人员进行矫正视力、外眼、前房、晶状体、玻璃体及眼底检查。观察其低视力及盲的患病率,分析致盲的重要原因。结果:2569例中受检2206例,受检率85.87%,低视力和盲的患病率分别为3.85%和1.90%。致盲主要眼病依次为白内障、青光眼、角膜病、眼睑疾病及翼状胬肉。结论:白内障依然是低视力和盲的首要病因,但眼睑疾病及翼状胬肉致盲也不容忽视。

AIM:To investigate the prevalence of blindness and low vision,leading cause of blindness among adults aged ≥50 years in Sanya outskirts of Hainan,China. ·METHODS:Random sampling analysis was performed in 2 569 individuals chosen as the sample aged ≥50 years in 28 villages of Sanya. Corrected vision,external eye,anterior chamber,lens,vitreous,fundus were examined by ophthalmologists. The prevalence of blindness and low vision was calculated,and the main cause of blind-ness was analyzed. ·RESULTS:Totally 2206 individuals among 2569 were examined. The response rate was 85.87%,the prevalence of blindness was 1.90% and the prevalence of low vision was 3.85%,resulting chiefly from cataract,glaucoma,keratitis,eyelid disease and pterygium. ·CONCLUSION:The epidemiological results show that the main cause of blindness and low vision is cataract. But the other causes of blindness such as eyelid disease and pterygium can not be neglected.

R181.3