【摘要】 目的　研究睡眠时间等相关因素对近视进展的影响，指导青少年合理用眼，防止近视进展。方法通过书面形式，调查近３年来患近视的 １４８２名中学生。结果　在 １４８２名学生中，近视进展的有 １０５３人，占７１．０５％。在相关因素中，睡眠时间短、连续学习时间长、看电视（游戏机）时间长、看书姿式不正确以及不做眼保健操对近视进展均有显著的影响。结论　长时间缺乏睡眠，持续近距离工作，看书姿式不正确，看电视时间长可以引起睫状肌痉挛并导致近视进展。更多还原

【Abstract】 Objective To investigate correlative factors which have effect on myopia progression such as sleeping --time etc, and instruct the adolescents how to use their eyes correctly,and prevent ho myopia progression. To investigate 1,482 middle school students who had myopia in latest three years by tables.Results In 1,482 students there were 1,053 students who had myopia progress.The proportion was 71. 05%. In correlative factors, it had significant influence upon myopia progression that was short of sleeping, keeping on studying or watching TV for a long period, erroneous posture of reading and not doing setting -- up exerises. Conclusions Being short of sleeping for a long period and short -- distance working frequently are primary factors which cause cyclospasm. Erroneous posture of reading and watching TV for a long period may aggravate it and lead to myopia progression.So it is the burning issue to prevent from myopia progress that relieves the students’ burden and making rational use of eyes.更多还原