What is a cataract?
A cataract is a clouding of the natural lens of the eye. The lens is a clear structure in the front portion of the eye that helps to focus light onto the retina (the back of the eye). The lens must be clear for the retina to receive a sharp image. If the lens is cloudy from a cataract, the image you see will be blurred. Most cataracts are related to aging.
Typical symptoms caused by cataracts are difficulty reading small print, difficulty seeing street signs, and noticing glare in bright light conditions such as when driving toward the setting sun. Glare from headlights of cars while driving at night is another common problem seen in people who have cataracts.
This photo shows a gray clouding of the natural lens of the eye (a cataract) as seen through a dilated pupil.
When a cataract makes it difficult for you to enjoy your daily activities, it can be treated with the cataract removal procedure.