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为保护青少年视力提出科学依据,我们于1986年对本县应届高中毕业生的视力减退情况进行了调查。现将结果分析如下。对象与方法对象为本县七所中学26个班级1426名应届高中毕业生。采用国际E字型视力表对这批学生进行视力减退情况的测定。规定凡低于1.0者为视力减退,其减退程度按全国标准分为三档。此外,还同时调查了学生所在教室的一般卫生
To provide a scientific basis for the protection of young people’s eyesight, we conducted a survey in 1986 about the loss of vision of the current senior high school graduates in our county. The results are as follows. Subjects and Methods The target of the county seven secondary schools in 26 classes 1426 fresh high school graduates. The use of international E-shaped eye chart for these students to assess the situation of vision loss. The provisions of less than 1.0 for the visual impairment, the degree of reduction according to the national standard is divided into third gear. In addition, the general hygiene of the classroom where the student is located is also investigated