Merck Manual

Please confirm that you are not located inside the Russian Federation

How Cataracts Affect Vision
How Cataracts Affect Vision
How Cataracts Affect Vision

On the left, a normal lens receives light and focuses it on the retina. On the right, a cataract blocks some light from passing through the lens and scatters the light, preventing crisp focus on the retina.

In these topics
Cataract