health
Wednesday, July 25, 2007
太阳眼镜
世界卫生组织估计,每年约有1600万人因白内障而失明,其中约20%与过度暴晒在太阳下与阳光接触有关
许多人都懂得“防晒”,知道阳光对皮肤的伤害很大,轻的话会出现色素斑、黑斑、皱纹等,严重的话会造成皮肤灼伤,甚且或是致命的皮肤癌,但许多人不知道的是,长期接触阳光,也会伤及眼
专家认为,西藏高寒缺氧气候及强烈的紫外线辐射等自然环境是造成西藏白内障发病率和致盲率偏高的主要原因
眼睛经常被紫外线照射,除引起白内障之外,也会令结膜退化,并出现结膜黄斑和翼状胬肉(pterygium)。
posted by 張醫生 at
10:46 PM
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