The key to protecting your child may be as simple as ensuring they play outside as much as possible in the school holidays and after school. Children who did a lot of close-up academic work and spent most of their time indoors were more likely to become short-sighted.

保护小孩的关键其实很简单，只要确保他们在课后和假期里的户外活动时间越长越好。近距离的课业多、待在室内时间又长的孩子更有可能近视。

Chinese school designers are busy with the attempt to tackle their country's rising myopia rate. In Guangdong province, for example, they have constructed bright-light classrooms with walls and ceilings made of see-through plastic. Two years ago, Taiwanese researchers got one school to lock its students out of the classroom during break-time and lunch. As a result, students had 80 minutes more sunlight during the school day.

中国的学校设计师们正忙着试图解决越来越高的近视率。以广东省为例，广东建造了强光教室，墙壁和天花板都是由通透的塑料制成。两年前，台湾的研究人员让一所学校在休息时段和午饭时间把学生锁在教室外面。这样，学生白天上课就多了80分钟的时间接触阳光。

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