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目的:了解四川省低视力及盲的原因和发病率。方法:分层多阶段及随机抽样调查38个县市40351户125641人,进行全面眼部检查,包括标准对数视力表检测视力,发病率以年龄和性别为标准根据2000年中国人口普查结果进行分析。结果:盲率0.77%(95%可信区间:0.72～0.82,n=966),低视力率1.22%(95%可信区间1.14～1.27,n=1513)。视力残疾率城市1.40%,农村2.22%(P<0.01),白内障无论城市还是农村均是首位致残原因(55.7%,n=1381),视网膜疾病居第二(9.7%,n=236),但是城市明显高于农村(34.3%vs2.7%,P<0.01)。角膜病居第三(6.5%,n=161),农村明显多于城市(7.2%vs3.9%,P=0.006)。结论:四川省估计有约172万视力残疾患者,其中52.5万盲人,防盲重心在农村。
Objective: To understand the causes and incidence of low vision and blindness in Sichuan province. Methods: Stratified multi-stage and random sampling survey of 40351 households in 125 counties and 125641 in 38 counties and cities for comprehensive eye examination, including standard logarithmic visual acuity test for visual acuity. The incidence rate is based on the age and sex of 2000 according to the results of the China Census 2000 analysis. Results: Blindness was 0.77% (95% confidence interval: 0.72-0.82, n = 966), and low vision rate was 1.22% (95% confidence interval 1.14-1.27, n = 1513). Visually handicapped rate was 1.40% in urban areas and 2.22% in rural areas (P <0.01). Cataracts were the first cause of disability in both urban and rural areas (55.7%, n = 1381), and retinal diseases were the second (9.7%, n = 236) However, the urban areas were significantly higher than those in rural areas (34.3% vs 2.7%, P <0.01). Corneal disease was the third (6.5%, n = 161), significantly more in rural areas than in urban areas (7.2% vs 3.9%, P = 0.006). Conclusion: There are an estimated 1.72 million visually-impaired patients in Sichuan Province, of whom 525,000 are blind and have a blind focus on rural areas.