Prevalence Rate and Surgery Status of Cataract in Luxi County of Yunnan Province

Objective To investigate the prevalence rate,surgical coverage rate and effect of surgery of cataract in Luxi county of Yunnan province,so as to evaluate the cataract status and the result of the blindness prevention and treatment program in the recent 10 years.Methods Cluster random sampling was used in selecting individuals aged over 50 from November 2011 to April 2012 in Luxi county.A total of 5151 individuals received eye examination,and their cataract operation status was evaluated.Results The prevalence rate of cataract was 22.40% among 5151 individuals,and the burden of cataract surgery was 9.3%.Cataract surgical coverage rate was 5.25%,and the cataract blindness burden was 9.24%.Among the 217 persons with cataract surgery,77.42% had the surgery in only the right eye.After surgery,the uncorrected visual acuity and the corrected visual acuity of 0.5 or better was accounted for 39.9% and 51.1%,respectively.Conclusion Vision impairment related to cataract is a serious problem in this population-based sample of Luxi county.Among the population,cataract surgical coverage rate is low,and the social burden rate is very high.The efficacy of cataract surgery is obvious but far from the desired effect of patients.