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凡是眼睛无明显器质性改变,以功能性因素为主所引起的远视力低于0.9,且不能通过戴眼镜矫正者,称为弱视。弱视患者,不能建立完善精确的立体视觉。幼儿患弱视,便不能通过视听和手脑并用进行结合锻炼,影响神经系统的健康发育,有碍于儿童的智力开发。引起弱视的原因是多方面的,室内采光照明度不足,儿童不正确的坐姿和握笔姿势,无节制的看电视等,常可引起弱视。因此改变上述不良习惯,改善照明条件,是预防弱视的前提。
All eyes without significant organic changes, mainly due to functional factors caused by far less than 0.9, and can not be corrected by wearing glasses, known as amblyopia. Amblyopia patients, can not establish perfect stereoscopic vision. Children with amblyopia, we can not through the audio-visual and hand brain combined exercise, affect the healthy development of the nervous system, hinder the development of children’s intelligence. The causes of amblyopia are many, lack of indoor lighting lighting, children sitting and holding the wrong posture, uncontrollable watching TV, etc., can often cause amblyopia. Therefore, to change the bad habits, improve lighting conditions, is to prevent amblyopia.