What is the role of zinc in treating macular degeneration?
A small preliminary study in the 1980s suggested that zinc might help slow down the progression of macular degeneration. Zinc is present in relatively high levels in the retina and the elderly often have diets which are low in zinc. Unfortunately, there have been subsequent studies which have failed to show any benefit from zinc. Zinc and other vitamin/mineral supplements are often recommended by ophthalmologists, but they have not yet been proven to be effective. The National Eye Institute is currently conducting a multi-centered study concerning the possible benefits of vitamin/mineral treatment in macular degeneration and cataract. Unfortunately, that study will probably not reach a conclusion for several more years. In the meantime, I recommend that you discuss vitamin/mineral supplements with your ophthalmologist. Please keep in mind that it can be harmful to take very high levels of certain vitamins and minerals.
