Notice: Users may be experiencing issues with displaying some pages on stanfordhealthcare.org. We are working closely with our technical teams to resolve the issue as quickly as possible. Thank you for your patience.
 

COVID-19 Updates:      What We're Doing to Keep You Safe »      COVID-19 Resources »       Updated Visitor Policy »

Cataract

What are cataracts?

Cataracts are a painless, cloudy area in the lens of the eye. They block the passage of light to the retina. Nerve cells in the retina detect light entering the eye and send nerve signals to the brain about what the eye sees. Because cataracts block this light, they can cause vision problems.

Condition Spotlight

Diagnosing and Treating Cataracts Watch Video

Clinics for Cataract