Shellfish may help preserve seniors' eyesight

Eating foods rich in omega-3 fatty acids, such as salmon and tuna, seems to be fine for not only the heart and mind but the eyes. A latest study adds shellfish to that group. It found that seniors who ate at least one serving a week of fish or shellfish high in omega-3s reduced their risk of developing advanced age-related macular degeneration, a disease that affects vision, by 60 percent.The