What is a Cataract? A cataract is a progressive clouding of the eye's natural lens, which is located directly behind the iris and the pupil. [Image of the anatomy of the human eye showing the lens] The Analogy: Imagine looking through a window that is constantly foggy, frosted, or smeared with grease. Things look blurry, hazy, and significantly less colorful. It is not a growth on the surface of the eye, but a chemical change inside the lens proteins themselves. Symptoms: The Gradual Fade Cataracts usually develop slowly and painlessly over several years. You may not notice changes at first, but watch for these progressive shifts in your vision: Cloudy or Blurred Vision: Persistent haziness, as if you are looking through a dirty camera lens. Night Vision Struggles: Increased difficulty driving at night due to poor contrast. Glare and Halos: Seeing bright, distracting rings or "star...