Age-Related Macular Degeneration (AMD)
Age-related macular degeneration is an eye disease with onset after age 60 that progressively destroys the macula, the central portion of the retina that helps with focus. It rarely causes total blindness as only the center of vision is affected.
There are two types of AMD: wet and dry. In wet AMD, abnormal blood vessels behind the retina start to grow, leaking blood and fluid, causing loss of central vision, which may occur quickly. In dry AMD, the light-sensitive cells in the macula slowly break down causing central vision to diminish over time.
For wet AMD, treatment includes laser surgery, photodynamic therapy, and injections into the eye. Dry AMD can be treated with high-dose formulations of antioxidants and zinc, which may delay and possibly prevent AMD from progressing. None of these will cure the disease and once vision is lost it cannot be restored.