白内障的预防有哪些方法

　　白内障是一种眼疾，是致使老年人致盲的一个主要原因，如何预防白内障呢，养成以下6个好习惯，能有助于预防白内障的发生。

　　1.经常喝绿茶。白内障患者眼睛晶状体和房水内维生素C的含量比健康人明显要低，而茶叶中含有丰富的维生素C，尤以绿茶为佳。研究发现，每100克绿茶中含有280毫克的维生素C，是红茶的5～6倍。在所有种类的茶叶中，绿茶中的维生素C的含量最高。

　　2.补充维生素C。随着年龄的增长，营养吸收功能与代谢机能逐渐衰退，晶状体营养不良，维生素C含量明显下降，久而久之引起晶状体变性，导致白内障的发生。所以，老年人应多吃新鲜蔬菜水果，摄入足够的维生素C。
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