cataractA cataract is a cloudiness or opacity that occurs in the crystalline lens of the eye. The lens is made mostly of water and protein that is arranged to let light through. Sometimes the protein clumps, blocking light and making the lens appear cloudy.




A person with cataracts may encounter blurred vision, faded colors, problems with light (such as halos, or headlights that seem too bright), poor night vision, double vision, or multiple vision.




Your eye doctor can detect the presence of cataracts through a thorough eye exam. Cataracts are treated through surgery when they have reached a certain level of blurriness. Early cataract development can be minimized through proper UV protection, and the use of safety glasses in sports.