Yīshēng jiànyì tā zuò shǒushù zhìliáo báinèizhàng.
The doctor recommended surgery to treat his cataract.
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白 (white) + 内 (inner) + 障 (obstruction) — literally 'white inner obstruction.' The name describes how a cataract makes the normally clear lens appear white and cloudy, obstructing vision from within.
