Why do so many Chinese children wear glasses?
chinadaily.com.cn | Updated: 2018-09-07 13:26
1105852048 (US)
There has been plenty of research done about this problem. Most state the main reason for poor eyesight is a lack of vitamin D, or sunlight. Almost all Chinese kids hardly ever see sunlight, because they are either at school or at home studying. The short period of outside PE is not enough to get a “good dose” of sunlight.
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