A cataract is a cloudy area in the lens of the eye that blocks the normal passage of light through the eye.

白内障是指眼内晶状体的浑浊区域阻碍了光线正常进入眼内。

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A cataract is a cloudy area in the lens of the eye that blocks the normal passage of light through the eye.

白内障是指眼内晶状体的浑浊区域阻碍了光线正常进入眼内。

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