江苏省阜宁县农村50岁及以上人群未矫正屈光不正流行病学调查

目的 分析江苏省阜宁县农村50岁及以上人群中未矫正屈光不正的患病率情况.方法 采用随机整群抽样的方法,在江苏省盐城阜宁县对50岁及以上农村人群进行视力和眼部检查.未矫正屈光不正的定义参照较好眼日常生活视力＜20/40,屈光矫正后视力提高≥2行的标准.定量资料采用均数±标准差表示,组间比较采用t检验;计数资料采用率或构成比表示,组间比较采用x2检验.应用logistic回归分析了解受检者不同年龄、性别等因素对未矫正屈光不正患病率的影响.结果 阜宁应调查6145人,实际接受调查5947人,受检率为96.8％.未矫正屈光不正2388人,患病率为40.2％.单纯近视、单纯远视、单纯散光和远视合并散光的未矫正屈光不正患病率分别为84.4％、84.2％、64.1％和100.0％.高龄(OR=1.07,P＜0.001)、女性(OR=1.38,P＜0.001)人群未矫正屈光不正患病率高,受教育程度方面则是初中、高中及以上人群较文盲人群未矫正屈光不正患病率低(OR =0.74,P=0.003;OR=0.55,P＜0.001).结论 江苏省阜宁县农村50岁及以上人群中,未矫正屈光不正患病率较高,是影响老年人视力的主要原因之一.

Prevalence of uncorrected refractive errors of rural population aged ≥ 50 years in Funing county,Jiangsu province

Objective To investigate the prevalence of uncorrected refractive errors among urban population aged 50 years and above in Ftming county,Jiangsu province.Methods Survey research was conducted and randomly cluster sampling was used to select individuals aged ≥50 years for visual acuity test and eye examination in Funing county,Jiangsu province.The criteria of uncorrected refractive errors in this study was defined as an improvement of at least 0.2 log MAR (equivalent to 2 lines) in the best corrected visual acuity with the base vision ＜ 0.5 log MAR in daily life.The quantitative data were expressed as mean ± standard deviation,and t-test was used for comparison between groups,and while the count data were expressed as rate or composition ratio,and the x2 test was adopted for comparison between the groups.Logistic regression was used to examine the effect of possible factors (i.e.age and gender) on the prevalence of uncorrected refractive errors.Results A total of 6145 persons aged 50 years and above were enumerated and 5947 (96.8％) participants were examined,of whom 2388 had uncorrected refractive errors,with the prevalence of 40.2％.The prevalence of uncorrected refractive errors for myopia only,hyperopia only,astigmatism,and for hyperopia and astigmatism were 84.4％,84.2％,64.1％ and 100％,respectively.Moreover,the higher prevalence of uncorrected refractive errors presented in elderly person (OR =1.07,P ＜ 0.00l) and female (OR =1.38,P ＜ 0.001),and education was a protective factor for junior high school (OR =0.74,P =0.003) and high school (OR =0.55,P ＜ 0.001).Conclusion Uncorrected refractive errors presented high prevalence in rural population aged 50 years and above in Funing county,Jiangsu province,which are the leading cause of visual impairment.