论文部分内容阅读
颖上县６０１名中小学生视力减退情况的调查报告颖上县卫生防疫站（２３６２００）李伟谢应宋维胜为了解和掌握中小学生视力减退情况，探索影响因素，为开展“防近”工作提供科学依据，我站于１９９５年４月对颖上一中、城关一小两所学校的学生进行视力减退情况的调查。１...
Investigation Report on Vision Loss of 601 Primary and Secondary School Students in Ying Shang County Ying Shang County Health and Epidemic Prevention Station (236200) Li Wei Xie Ying Song Weisheng In order to understand and master the sight loss of primary and middle school students, explore the influential factors and provide scientific On the basis of this, I conducted a survey in April 1995 on the loss of vision of students in a school of two pupils in Ying-Shang-Ii and Chengguan-Kwan. 1 ...