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于1979～1981年间,对我县城、中央、省属厂矿中学及农村中学,参加县大、中专升学体检的高、初中应届毕业学生,计2156人,男生1329人,女生764人,女中高中毕业生1654人,初中毕业生502人。年龄均在15～18岁,作了统计分近视发病率及其病因,以供开展近视防治工作的参考。检查方法1.采用“E”字形视力表箱挂在不受
During 1979-1981, a total of 2156 high school and junior high school graduates were enrolled in factories, mines and rural secondary schools in our county, central and provincial provinces, and participated in the examination of junior and senior high school graduates in counties and colleges. There were 1,356 boys, 1,329 boys and 764 girls, 1654 high school graduates, 502 junior high school graduates. Aged 15 to 18 years old, made a statistical sub-myopia incidence and its etiology, for the prevention and treatment of myopia reference. Inspection methods 1. The use of “E” -shaped eye chart box hanging from