AIM:To investigate the prevalence and distribution of cataract among adults aged 50 or older in Foshan area.

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.