Macular Degeneration is the number one cause of legal blindness in people over the age of 60. The most common form is refered to as Age-Related Macular Degeneration (AMD or ARMD). There are other, rarer forms of Macular Degeneration, but here we will concentrate only on the age related form. The risk of Macular Degeneration significantly increases with age. In fact, people between the ages of 64 to 74 have a one-in-four chance of developing the disease. Many seniors already have the Macular Degeneration and don't even know it. A visit to your eye doctor is your greatest defense in helping to preserve your vision.