本区中学生自1978年视力低下率26.9%至1986年上升为64.4%,小学生自1981年视力低下率19.3%至1986年上升为25.2%,虽然视力减退的原因是多方面的,但与家庭学习环境照明有着密切的关系。于是我们组织了上海医科大学实习生对本区江五小学的学生家庭照明进行了抽样调查。1 抽样对象与方法1.1 对象选择家庭经济条件有代表性的、均在家晚自习的江五小学76名六年级学生家庭照明。2.2 方法用经校正过的2F—Ⅱ型照度计, The percentage of students with low vision in the district since 1978 rose from 26.9% in 1986 to 64.4% in 1986. The rate of pupils’ low vision from 19.3% in 1981 to 25.2% in 1986. Although the causes of vision loss are many, they are related to family learning. Environmental lighting has a close relationship. So we organized an intern at Shanghai Medical University to conduct a sample survey of student home lighting at Jiang 5 Elementary School in the district. 1 Subjects and methods of sampling 1.1 Subjects Select the home lighting of 76 sixth-grade students from Jiangwu Elementary School, which are representative of the family economic conditions, both at home and evening. 2.2 Method using a calibrated 2F-II type illuminometer,