建湖县中学生视力六年动态分析

AN ANALYSIS ON THE TENDENCY OF THE MIDDLE SCHOOL STUDENTS SIGHT

对我校１９８９～１９９４年度１５０９９名学生视力的动态观察，视力不良率在六年间由４２．１１％上升到６９．６０％，呈逐年上升趋势。高中学生视力不良率高于初中，女生高于男生。课业负担重，用眼时间长，是导致学生视力不良的重要因素。

An observe,which was about 15099 students sight during the period of 1989￣1994,was completed.The unhealthy rate of sight has gone up to 69 60%,although it was just 42 11% six years ago.It shows that the rate is rising year and year.The unhealthy rate of sight of senior students is higher than that of junior students.That of girls is higher than boys.Too much homework and reading for too long time are the important factors to cause the students sight to be got worse.