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• W2387100989 abstract "Objective:To assess the prevalence of cataract,low vision and cataract surgical burden,and to estimate the cataract surgical coverage and postoperative vision in rural and urban defined populations in Beijing.Methods:A total of 4364 subjects(1909 of rural subjects and 2455 of urban subjects) aged 40 years or more in rural and urban defined populations in Beijing included this survey.All participants came from four communities in the north of Beijing and three communities of Yufa in south country of Beijing,China.Each subject was examined including questionnaire and ocular examination.The detailed questionnaire included medical history of systemic and eye disorders,family history,etc.Ophthalmologic examination included visual acuity determination and refraction,intraocular pressure measurement,slit-lamp biomicroscopy examination for lens and fundus evaluation after pupil dilated.The application of digital photography technology(lens cortex and posterior subcapsular photography can be collected with Neitz CT-R cataract illumination analyzer.)had accelerated greatly on the evaluation of lens and fundus.The criteria for cataract surgical burden were:(1) being diagnosed as cataract;(2)having excluded other eye disorders which influenced visual acuity such as corneal diseases,glaucoma,fundus diseases,corneal scarring due to trachoma;(3)corrected visual acuity in one eye was equal to or less than 0.3;or visual acuity in both eyes were equal to or less than 0.3.Results:The prevalence of cataract was 16.30%.Visual acuity of 0.3 or worse in both eyes was obtained in 14 individuals among cataract patients.The overall rate of the cataract surgical burden was 0.32%,0.52% in rural population and 0.16% in urban population.Visual acuity of 0.3 or worse in at least one eye was obtained in 67 individuals among cataract patients.The overall rate of the cataract surgical burden was 1.54%,1.89% in rural population and 1.26% in urban population.Cataract surgical need in female was more than that in male and this tendency was increasing with age,the surgical need in rural elderly female was most desperate.A total of 55 individuals(72 eyes) had cataract surgical history,the overall cataract surgical coverage was 7.03%,4.71% in rural and 9.03% in urban populations,6.69% in female and 7.33% in male.The lowest cataract surgical coverage was 3.77% in rural female.At survey,18.06% of the postoperative patients were identified visual acuity of 0.3 or worse.The reasons for poor postoperative vision were after-cataract,fundus diseases such as optic nerve atrophy,diabetes retinopathy,and surgical complication such as bullous keratopathy,etc.Conclusion:The need for cataract surgery in rural population is more than that in urban population.Rural elderly females are in desperate need for cataract surgery.The postoperative vision is not as good as expected.The need for cataract surgery in the defined populations of Beijing exceeds the currently available capacity of cataract surgery." @default.
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• W2387100989 title "A prevalence survey of cataract surgical burden and evaluation of the postoperative vision in rural and urban defined populations in Beijing" @default.
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