of the50students,89.53% studied for 12 to 13 hours every day,67.25% kept on reading for more than 90 minutes and 47.34% slept for less than 8 hours every day.Conclusions Long-term studying,short-distance working and inadequate sleeping are primary factors of degenerative myopia.So it is neccessary that we should relieve the students' burden to prevent degenerative myopia.
关键词--
近视的原因|近视的危害|怎样护眼, 近视的原因|近视的危害|怎样护眼
罗列研究资料--
问卷
专访资料
研究结果--
高中学生近视进展率较初中学生有非常显著性差异，普遍高中生的视力比初中生更低且高中生近视人数远多于初上一页 [1] [2] [3] [4] [5] [6] 下一页 |
