Cataracts at a Glance
A cataract forms when the normally clear natural lens inside your eye becomes cloudy. Cataracts most commonly develop as part of the natural aging process, although certain health conditions, medications, previous eye injuries, and other factors may increase your risk.
Cataracts often develop gradually. You may not notice a major change at first, but your vision can become increasingly blurry or hazy as the cataract progresses. Glasses or contact lenses may temporarily improve your vision, but they cannot remove a cataract. Surgery is the only way to remove the cloudy lens.

