Cataracts occur when the natural lens of the eye, located behind the pupil and iris, becomes cloudy. This can result in cause blurriness, sensitivity to light and vision loss. Cataracts are a leading cause of blindness and affect millions of people in the United States, especially those over the age of 40. The only way to treat cataracts is to remove the clouded lens through surgery. The good news is that cataracts are preventable to a certain extent. Follow our tips to ensure that you are doing your part to prevent cataracts.