Over 2,500 senior adults took part in the studies and were all required to complete a questionnaire and take an eye exam. The researchers then evaluated the relationship between fish consumption and eye health. Fifteen percent of participants were already in the early to intermediate stages of AMD, and under three percent already had advanced AMD. However, the research team did find that those who ate one or more servings of healthy fish each week were 60 percent less likely to develop advanced AMD than those who ate less than that amount or none at all.
Fishes such as salmon and mackerel along with other oily fishes contain omega-3 fatty acids and it is these nutrients that help to prevent macular degeneration.
Many varieties of fish also contain high doses of antioxidants vitamins C and E, neta carotense and zinc all of which contribute to successfully fighting off macular degeneration.