近年来根据大量的资料统计,学校的学生中近视率随年级逐渐增加。怎样预防近视?近视到底能不能治愈?成了老师、学生和家长们十分关心的问题。近视限发生的因素中,有先天因素(遗传因素)和后天因素(环境因素)。前者多见于600度以上的高度近视,较少见。大多数的近视是后天不注意用眼卫生造成的。对这类近视,要积极预防。一般要记住四点:一是要掌握好阅读姿势,读写一定要端正,如躺着、走路或行车中阅读最易累眼。二是要掌握好阅读写字的距离,一定要把读物 In recent years, according to a large number of statistics, the myopia rate of school students increases with grade. How to prevent myopia? Myopia in the end can not be cured? Become a teacher, students and parents are very concerned about the problem. Myopia limiting factors, there are innate factors (genetic factors) and acquired factors (environmental factors). The former more common in more than 600 degrees of myopia, rare. Most myopia is caused by acquired carelessness. For such myopia, to actively prevent. Generally remember four points: First, we must grasp the reading position, read and write must be corrected, such as lying, walking or driving the most easy to read tired eyes. The second is to master the distance reading and writing, we must read books