名词
中文翻译：白内障
同义词：
['cataract', 'opacification of the lens']
例句：
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1.The patient was diagnosed with a mild cataract.
患者被诊断出患有轻度白内障。
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2.The surgery aims to remove the cataract and restore vision.
手术旨在移除白内障并恢复视力。
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3. Cataracts can be caused by aging or exposure to sunlight.
白内障可能是由于老化或暴露于阳光引起的。