其治疗方法是摘除混浊的晶状体，换上永久性的塑料晶状体。
The treatment is to remove the clouded lens and replace it with a permanent plastic lens.
托比瞪视了我一会儿，然后发出一阵混浊的笑声，就像一团乱毛。
Toby stared at me a moment and then laughed a thick laugh, like uncombed wool.
白内障：一种晶状体变得越来越混浊的眼病，导致视力受损，并最终导致失明；
Cataract: an eye disease where the lens becomes increasingly opaque, resulting in impaired vision and eventual blindness;
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