Zhu S P, Xu J J, Yu Q
Zhongshan Ophthalmic Center, Sun Yat-sen University of Medical Sciences.
Zhonghua Yan Ke Za Zhi. 1994 Sep;30(5):386-8.
An epidemiologic survey of blindness and low vision in persons over 45 years old in Doumen County, Guangdong Province was carried out in 1991. The sample size was 932 subjects. We found that the impairment of vision < 0.3 accounted for 10.94%. The prevalences of bilateral blindness and low vision were 1.61% and 3.22%, respectively. Both the prevalences of blindness and low vision were increased with age. The leading cause of blindness was cataract (45.20%) and the second, corneal opacity (16.70%).
1991年，对广东省斗门县45岁及以上人群的盲症和视力低下情况进行了一项流行病学调查。样本量为932名受试者。我们发现视力<0.3的损伤占10.94%。双眼盲症和视力低下的患病率分别为1.61%和3.22%。盲症和视力低下的患病率均随年龄增长而增加。致盲的主要原因是白内障（45.20%），其次是角膜混浊（16.70%）。
