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为了解我县中小学生视力减退情况及原因,以便采取保护视力的措施,我们于1978年5月对新沂中学、新安小学和实验小学4,706名在校学生根据常规视力检查方法进行了视力调查,现将调查结果报告如下。一、调查4,706人中,男生2,448人,女生2,258人,小学生2,792人,中学生1,914人。查出视力减退者(视力在1.0以下)394人,视力减退率为8.37％。视力减退率有随着学年的上升而增加的趋势(X~2=55.75、P<0.01)。如按学程统计,小学阶段视力减退率为6.84％,初中阶段为9.29％,高中阶段为12.74％,即视力减退率随学程的上升而增加(X~2=28.16、P<0.01)。二、视力减退率的高低与性别有关,一般都是女生高于男生。本资料亦是如此,男生视
In order to understand the situation and reason of eyesight loss of primary and secondary school students in our county in order to take measures to protect eyesight, we conducted visual inspection on 4,706 students in Xinyi Middle School, Xin’an Primary School and Experimental Primary School according to routine visual acuity examinations in May 1978, The survey results are reported below. First, survey 4,706 people, 2,448 boys, 2,258 girls, 2,792 pupils, 1,914 secondary school students. 394 people with vision loss (visual acuity below 1.0) were found, and the rate of vision loss was 8.37%. The rate of vision loss increased with the school year (X ~ 2 = 55.75, P <0.01). According to the academic statistics, the rate of vision loss in the primary school was 6.84%, that in the middle school was 9.29%, and that in the high school was 12.74%. That is to say, the rate of vision loss increased with the increase of schooling (X ~ 2 = 28.16, P <0.01). Second, the level of vision loss related to gender, girls are generally higher than boys. This information is true, boys view