[Myopia prevalence and influencing factor analysis of primary and middle school students in our country].

@article{Xie2013MyopiaPA,
  title={[Myopia prevalence and influencing factor analysis of primary and middle school students in our country].},
  author={Hong-li Xie and Zuo-kai Xie and Fen Zhou and Liang Hu},
  journal={Zhonghua yi xue za zhi},
  year={2013},
  volume={93 13},
  pages={999-1002}
}
OBJECTIVES To explore the situation and the affect factors of myopia and scientificalness and effectiveness of eye exercises about primary and middle school students. METHODS Through the random cluster sampling method, 20 000 students of 90 schools including key and non-key primary or junior or senior school in country and city of shandong, qinghai, yunnan, Shanghai and wenzhou were random selected. Primary students is 11 246 junior students is 3673 senior students is 4220.We surveyed related… CONTINUE READING