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为探讨近视眼发生与营养状况的关系，为开展近视眼的防治工作提供依据，我们对317名中小学生做了调查，现将结果报告如下。1对象与方法11在济南市这样小小学各3所，随机抽取小小学生317名，年龄7～15岁、评价方法按身高标准体di：值，民身高体重百分数标准在90％～110％为正常?
In order to explore the relationship between myopia and nutritional status, to provide a basis for the prevention and treatment of myopia, we conducted a survey of 317 primary and secondary students, the results are reported as follows. 1 Subjects and Methods 11 Three primary schools in Jinan were randomly selected, 317 pupils were randomly selected and aged from 7 to 15 years old. The evaluation criteria were as follows: height: standard body weight percentage, body weight percentage of 90% to 110% normal?