西藏林周縣盲患病率及白内障手術狀况調查

目的調查西藏拉薩市林周縣40歲及以上人群中盲患率和白内障盲人手術覆蓋率及盲人社會負擔率.方法2000年4月采用整群隨機抽樣方法對林周縣44個自然村3071例40歲及以上人群進行視力和眼部檢查.結果檢錄40以上共3346.受檢率爲91.8%(3071/3346).以雙眼日常生活視力<0.1爲標準,盲患病率3.3%(101/3071).白内障是致盲的主要原因,有64.4%(65/101)的雙眼盲人致少有1眼是白内障.白内障手術率覆蓋率爲63.0%(85/135).白内障盲人的社會負擔率爲4.4%.結論高原地區盲患病率較高,白内障是致盲的主要原因,白内障所造成的社會負擔較重.

Prevalence ofblindness and cataract surgery in Linzhou County, Tibet

Objective To estimate the prevalence of blindness, gurgical coverage rate and bilateral cataract blindness burden among adults aged 40 or above in Linzhou county of Tibet, China. Methods Using cluster sampling, 3,071 individuals aged 40 years or older were selected randomly from 44 villages in Linzhou county, Tibet in April, 2000 for visual acuity test and eye examination. Results A total of 3,346 subjects f4440 years old were registered .Of them 91.8% (3,071/3,346) were examined. In this popuktion, 3.3% (101/3, 071) were blind which was defined as presenting visual acuity legs than 6/60 in both eyes. Cataract was the principal cause of blindness in at least one eye in 65.3% (66/101) of blind people. The cataract surgical coverage was estimated to be 63.0% (85/135), and the bilateral cataract-blindness burden was 4.4% (135/3,071) . Conclusion The prevalence of blindness in the plateau is high, and bilateral cataract-blindness burden is heavy on old individuals. Cataract blindness is a serious public health problem in elderly people.