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OBJECTIVE: To study the status of blindness and low vision in Meixian County. METHODS: The stratified random sampling rule and the standard grading system of blindness set by the WHO were adopted in the study, and 11,327 subjects were enrolled (a sampling fraction of 2.01%) from throughout the county. RESULTS: The prevalence of bilateral blindness and low vision was found to be 0.47% and 0.89%, that of monocular blindness and low vision 0.72% and 0.59%, respectively. Subjects over 50 years of age had a significantly higher prevalence of blindness and low vision. The causes leading to blindness and low vision were, in order of prevalence, cataract, glaucoma, ametropia/amblyopia, and pterygium. CONCLUSIONS: The treatment of cataract is the main measure for decreasing the prevalence of blindness and low vision. LA: Chinese
Dr X. Liang, Department of Ophthalmology, Meixian People's Hospital, Guangdong Province 514011, China
1.5 Glaucomas as cause of blindness (Part of: 1 General aspects)