Xu J J, Yu Q
Zhongshan Ophthalmic Center, Sun Yat-sen University of Medical Sciences, Guangzhou.
Zhonghua Yan Ke Za Zhi. 1992 Sep;28(5):265-6.
An epidemiological survey of blindness was carried out in Kaipin County of Guangdong Province during October 1989 to May 1990, by stratified random cluster sampling. The sample population was 11,588, and the rate of blindness was 0.216%. The prevalence of blindness in persons aged 60 years and over was 48 times those of all other age groups combined. Since cataract accounted for 64% of the total blind cases, hence it was the key objective for surgical restoration of vision. Among 109 patients who were operated on for cataract, 83 cases were re-examined a half year later, and 78 cases (94%) had vision over 0.05.
1989年10月至1990年5月，采用分层随机整群抽样法对广东省开平县进行了一次盲症流行病学调查。样本人口为11588人，盲症患病率为0.216%。60岁及以上人群的盲症患病率是所有其他年龄组总和的48倍。由于白内障占总盲症病例的64%，因此它是视力手术恢复的关键目标。在109例接受白内障手术的患者中，半年后对83例进行了复查，78例（94%）视力超过0.05。
