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Reasons of Myopia 孩童近视的原因

Good vision in a child is important since more than 80% of the information a child receives is through vision. However, some children are extremely myopic (nearsighted) at a young age due to early exposure to television, computer, mobile phone games, not only lead to radiation issue but may affects the children's eyes and is detrimental to their vision

Basically, there are three major reasons (in addition to genetic reason) causing myopia, amblyopia and strabismus occurs in children:

1. Refractive errors

Referring to children writing technique (how they hold a pencil), reading or watching television in incorrect posture, poor light or watching television, using computer or playing games in long period of time, some even like to read books while walking or in a moving car, these may easily affect vision.

2. Nutrition Imbalance
Unbalanced child's nutritional intake easily leads to amblyopia and strabismus. Excessive intake of foods high in sugar, such as beverages, ice cream, etc., and do not eat vegetables and other bad habits, may lead to decrease of children's vision.

3. Kidney

Children cannot maintain nutritional balance may lead to weak kidney. It is very important for growing children to have balance nutrition. Thus, let the children eat soy products, milk, vegetables, carrot in order to enhance a child's diet condition. Try to avoid sweets.

良好的视力对于小孩子相当重要，超过80%的信息是通过视觉接收的。然而，小孩子得近视越来越低龄化。孩子们过早接触电视、电脑、手机游戏等，不但会引起辐射问题，还会造成对视力的严重伤害。

造成孩童近视、弱视与斜视基本上有3大原因（除遗传因素外）：

1. 屈光不正：
   指小孩在写字（握笔）、读书、看电视时姿势不正确，光线不足，或长时间看电视、玩电脑、手机游戏，有的喜欢在走路时和在晃动的车上看书等，都很容易影响视力。
2. 营养不均衡：
   如果孩童所摄取的营养不均衡，容易造成弱视与斜视。
   过多摄入含糖量高的食物，如饮料、雪糕等，以及不爱吃蔬菜等不良生活习惯，都可能导致孩子视力的下降。
3. 肾虚：
   小孩不能保持营养均衡，就容易肾虚，所以在孩子的成长过程注意营养的摄取是非常重要的。所以多让孩子吃豆类食物、牛奶、蔬菜、胡萝卜等加强孩子的饮食调理。尽量不要吃甜食。

Source资料源自：
http://feng.com.my/un/yiyao/local-chinese-physician/2011/03/25/%E5%B0%8F%E5%AD%A9%E8%BF%91%E8%A7%86%E6%80%8E%E4%B9%88%E5%8A%9E/
http://parenthots.com/features/How-to-improve-your-childs-eyesight.aspx