60+

There has been increased interest in protecting eyesight in the aging process, and discussion of macular degeneration.  Are there particular vitamins that might be taken as a preventive step?

The following is quoted from a recent Wall Street Journal article.

Age-related macular degeneration is an incurable eye disease that is the leading cause of vision loss in people over 55. It affects the macula -- the part of your retina that controls central vision. It causes blurred vision or a blind spot in the center of the visual field. One sign of the problem is needing more light to do close-up work. Eventually gray or blank spots interfere with your vision.

It's not yet known whether taking vitamins or supplements can prevent you from developing macular degeneration, although researchers are studying the issue. One important study, called the Age-Related Eye Disease Study, does show that people with moderate to advanced macular degeneration could benefit from high doses of zinc, beta carotene, copper and vitamins C and E. However, patients considering this should be cautious. Other studies have shown a risk of lung cancer by former smokers who use beta carotene, and patients with existing heart disease may have a higher risk of heart problems if they consume high doses of vitamin E. For advice on whether to consider the regimen used in the AREDS study, go to http://www.nei.nih.gov/amd/.

At this point, most experts don't recommend using supplements to prevent age-related macular degeneration and suggest supplements only for patients with existing disease and then only under the care of a physician.

If you are concerned about eye health, the best advice is to eat a diet rich in antioxidants -- leafy green vegetables and fruits. In addition, wear sunglasses that block at harmful ultra-violet light. Stop smoking and get regular eye exams.