Wearing lower degree convex lens can reduce incidence rate of myopia in primary school students.
配戴低度凸透镜可降低小学生近视的发生率。
Conclusion Wearing lower degree convex lens can reduce incidence rate of myopia in primary school students.
结论配戴低度凸透镜可降低小学生近视的发生率。
Objective: To investigate the impacts of eye care habits and vision burden on myopia among primary and high school students.
目的：了解中小学生用眼习惯与负担，探讨这些因素对近视的影响。
AIM: to assess the prevalence of refractive errors in middle school students in Lanzhou city and explore the risk factors for myopia.
目的：调查兰州市中学生屈光不正的发病率并探讨近视发病的危险因素。
Provincial prevalence of myopia increased from primary to high school continued the same trend.
各省市近视患病率从小学到高中不断增高趋势一致。
The utility model discloses a primary school student reading and writing rack for preventing myopia.
本实用新型公开了一种小学生防近视阅读书写架。
Objective To investigate the effect of lower degree convex lens on preventing myopia of primary school students.
目的探讨低度凸透镜预防小学生视近的效果。
Objective To investigate the effect of lower degree convex lens on preventing myopia of primary school students.
目的探讨低度凸透镜预防小学生视近的效果。
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