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目的调查青海省平安县50岁及以上人群的年龄相关性白内障患病率,了解当地年龄相关性白内障的患病情况。方法采用整群抽样方法抽取青海省平安县10个自然村1486例50岁及以上人群进行问卷、视力和眼部检查。诊断采用LOCSⅡ分级标准。结果调查应答率为86.20%。在1281例受检者中,年龄相关性白内障患病率为41.84%。随着年龄的增加患病率明显升高,50～59岁患病率为18.79%,60～69岁为51.17%,70岁以上为86.51%。女性和文盲者患病率较高,分别为43.69%及48.70%。按照WHO的盲与低视力的诊断标准,年龄相关性白内障导致的双眼盲占2.58%,导致的双眼低视力占6.56%。结论青海省平安县≥50岁老年人群的年龄相关性白内障患病率为41.84%,老龄、女性及文盲者患病率较高。
Objective To investigate the prevalence of age-related cataract in people aged 50 years and over in Ping’an County, Qinghai Province, and to understand the prevalence of age-related cataract in Ping’an County, Qinghai Province. Methods A total of 1486 people aged 50 years and older in 10 villages in Ping’an County of Qinghai Province were sampled for questionnaire, visual acuity and eye examination by cluster sampling method. Diagnosis using LOCS Ⅱ grading standards. Results The survey response rate was 86.20%. Among 1281 subjects, the prevalence of age-related cataract was 41.84%. The prevalence increased significantly with age, with a prevalence of 18.79% at 50-59 years, 51.17% at 60-69 years and 86.51% at 70 years of age. The prevalence rates of female and illiterate persons were higher, accounting for 43.69% and 48.70% respectively. According to WHO diagnostic criteria for blindness and low vision, blindness caused by age-related cataracts accounted for 2.58% of all eyes, resulting in low vision of both eyes, accounting for 6.56%. Conclusion The prevalence of age-related cataract in Ping’en 50-year-old population was 41.84% in Qinghai Province, and the prevalence rate was higher in elderly, women and illiterates.