北京市顺义县50岁及以上人群中盲患病率调查

Prevalence of blindness among adults aged 50 years or above in Shunyi county of Beijing

目的 调查北京市顺义县５０ 岁及以上人群中盲患病率，并与１９８５ 年调查结果相比较，以此评价近１０ 余年该县实施防盲治盲项目的效果。方法 １９９６ 年９ ～１１ 月采用整群随机抽样方法在顺义县抽取２８ 个调查点，对５０ 岁及以上人群进行视力和眼部检查。正式现场调查之前先进行预试验，并进行保证调查质量的重复性检验。结果 检录５ ５５５ 例中，受检人数为５ ０８４ 例，受检率为９１５ ％ 。以世界卫生组织视力损伤为标准，盲患病率为１７ ％ 。以双眼日常生活视力＜ ０１ 为标准，盲患病率为２８ ％ 。在老年和女性中，盲患病率增高。白内障仍是盲的主要原因。结论 北京市顺义县５０ 岁及以上人群中盲患病率下降了３５８ ％ 。在老龄和女性中，白内障引起的盲目仍是当前严重的问题。

Objective To estimate the prevalence of blindness among older adults aged ≥50 years in Shunyi county of Beijing, China Methods Cluster sampling was used in randomly selecting individuals aged ≥50 years in 28 villages in Shunyi county in fall, 1996 The survey was preceded by a pilot study where operational methods were refined and quality assurance evaluation was carried out Results 5 555 individuals were enumerated The response rate was 91 5% In this population, the prevalence of blindness was 1 7% defined as pinhole visual acuity <0 05 in both eyes; or 2 8% were blind, defined as presenting visual acuity <6/60 in both eyes Blindness was associated with older age and female gender The principal cause of blindness in eyes was cataract Conclusions The prevalence of blindness was decreased 35 8% after ten year active eye care program in the survey area However, cataract blindness continues as a significant problem among elderly, especially females, in this population sample of rural area