How do antioxidants promote prevention of macular degeneration?

Yes: There are several commercially available vitamins that reduce progression of macular degeneration. Ocuvites and i caps make a number of different supplements. Healthy eating of course is best incorporating spinach, kale, fish, and other green leafy vegetables into your diet.

Not great: Doesn't work well for primary prevention. May help if already have disease in one eye and want to prevent worsening in the fellow eye. Antioxidants block damaging free radicals.

Yes: The vitamin formula that was shown to slow the disease is areds.Consumption of fish (tuna or salmon) has been shown to reduce the risk by up to 40% in women.

They don't: There's no study, as far as i know that shows antioxidants prevent macular degen. There are studies that show that if you do have the disease, certain vitamins do help slow the progression.