ision
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You expected ision changes with age , but you hadn 't anticipated ision problems because of drooping eyelids .
你会预料到视力随年龄变化而变化，但你不会想到眼睑下垂也会影响到视力吧。
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Possible signs of AMD include a loss of central ision , seeing a dark spot in the center of the field of ision , distorted or blurred ision , and way vertical lines .
年龄相关的黄斑退行性改变可能存在的体征包括：中心视觉丧失（在视野中央看到一个黑斑）、视物变形或视力模糊以及看到波浪状的垂直线。