方法：对目标人群进行整群抽样。2014-01/2015-06对4 539名调查对象进行视力、眼压、验光、裂隙灯、眼底照相等检查。

结果：在4 539名受检者中，发现白内障患者641例，患病率14.12%。白内障患病率随年龄的增加而上升(P<0.05)，城乡之间的白内障患病率差异显著(P<0.05)，但性别差异不明显(P>0.05)。

结论：白内障是佛山城乡地区50岁及以上人群的主要致盲性眼病。

METHODS:Cluster sampling method was used in 4 539 inhabitants aged 50 or older in urban and rural of Foshan city from January 2014 to June 2015.All individuals were received visual acuity and eye examination, including slit lamp examination, fundus examination, automatic optometry and intraocular pressure examination.

RESULTS:There were 641 patients with cataract among the 4 539 adults and the prevalence of cataract was 14.12%. The prevalence of cataract grew as the adults became older(P<0.05).The difference of prevalence between rural and urban people was statistically significant(P<0.05).But difference between male and female was not significant(P>0.05).

CONCLUSION: Cataract is the most common eye disease that leads to blindness and severe visual impairment among adults aged 50 or older in the area.