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为了解学生视力不良的现况，分析影响视力的各种因素，对在校917名学生进行了用眼习惯调查，现将结果分析如下。1对象与方法1．1对家凯里五中全部在校学生。1．2方法自行设计调查表，各班班子经过培训，逐个同学询问填写。2结果与分析2．1从表1可见，住房面积小、看电视距离达
In order to understand the current situation of students with poor vision and analyze the various factors that affect the visual acuity, 917 students in the school used eye habit investigation. The results are analyzed as follows. 1 Objects and Methods 1.1 All of the students in the Kerry 5 school are at school. 1.2 Methods Self-designed questionnaires were prepared. All classes were trained and asked by students. 2 Results and Analysis 2.1 From Table 1, it can be seen that the housing area is small and the TV distance is up to