Harvard Medical School Guides

Harvard Medical School Guide: Clearing the Fog of Cataracts

Clearing the Fog of Cataracts NicoElNino | Getty Images What are cataracts? Whenever you gaze at a mountaintop view, look at your grandchildren, or watch your favorite sitcom on TV, the image you see is a product of your eye’s lens focusing light rays onto your retina. But what happens when that normally clear lens turns cloudy? Looking through a cloudy lens is like trying to peer through a dirty window, or as…

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