This animation by Visible Productions explains the process by which we see and defines how cataracts affect our vision. The build up of proteins clouds vision, as well as dulls colors and blurs contrast. Learn what occurs during cataract surgery to correct this common ailment.

To view an animation that explains how aging affects our vision, click here.To view an animation that shows what happens during lasik surgery, click here

Sponsored by Abbott Medical Optics - for more information click here. Animation produced by Visible Productions Inc.

Want to know how to look marvelous without splurging so much? Dr. Oz invites three beauty experts to share the smartest ways to save money while looking fabulous starting from your hair and makeup tools to the beauty products you use.