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我国中小学生近视率居高不下已日益受到社会的关注,预防学生近视是目前学校卫生防病工作的当务之急。为了解学生近视发生的相关因素,更好地指导防治工作,于2008年5~6月对江苏省部分中小学生进行了近视相关因素调查,现将结果报告如下。1材料与方法1.1对象采用整群随机抽样方法对
The high myopia rate of primary and middle school students in our country has been paid more and more attention by society. Preventing students’ myopia is the top priority of school health prevention. In order to understand the related factors of myopia and better guide the prevention and treatment work, some primary and secondary school students in Jiangsu Province conducted a survey of myopia in May-June 2008, and the results are reported as follows. 1 Materials and Methods 1.1 The object using cluster random sampling method