论文部分内容阅读
学校刚开学,便发现近视的学生人数不断增多。根据有关调查,广州的中小学生因用眼过度造成视力不良的现象越来越普遍,按现在的发展趋势推算,再过20年,将有8至9成的中学生视力不良。这么多学生视力不良,专家认为元凶之一就是电脑、电视的普及应用。本来放假就该好好休息,但学生却选择玩电脑游戏、看电视这些“休息”方法,不知不觉中接受着电脑和电视释放出来的电磁波和单向电离子量流
School started school, they found that the number of myopia students continue to increase. According to the survey, the phenomenon of poor eyesight caused by overuse of eyes by primary and secondary school students in Guangzhou is more and more common. According to the current development trend, another 20 to 90% of secondary school students will have poor eyesight. So many students with poor eyesight, experts believe that one of the culprits is the popularity of computers, television applications. Had a good rest on holiday, but students choose to play computer games, watching TV these “rest ” method, unknowingly accept the computer and television released electromagnetic waves and unidirectional ionization flow