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視力保健知多少 - 黃斑部病變

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  • 視網膜的中央部分----黃斑部,一生中一直非常忙碌地接受光線刺成視覺。
  • 黃斑部的細胞可能退化、變質,如果常常受強光刺激等傷害,則可能變質的情形會更厲害。
  • 有些變質只是黃斑部出現一些黃白色退化斑點,視力變差些或形像扭曲,這是乾型的病變。
  • 有些變質則會有血管增生或甚至出血、結疤等,視力變得很差,這是濕型的病變。
  • 防治
    1. 防老化,抗退化的健康生活。如避免強光刺激,光傷害,戴太陽眼鏡。多吃紅; 綠色蔬菜等富含維他命A、C、E,鋅和類捐蘿蔔素的食物。
    2. 有些可用雷射、經瞳孔熱治療、光動力療法等治療來控制變質和傷害。
Written by 網站○ Created: Friday, 14 June 2013 10:44
COM_CONTENT_MODIFIED_BY Last Updated: Wednesday, 29 August 2018 17:12

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