Sardines, tuna, mackerel and salmon, are some of the fishes that are extremely rich in omega 3 fatty acids. They help in protecting tiny blood vessels present in the eyes. Fish can also prevent inflammation of the eyes. According to the analysis in Archives of Ophthalmology, women whose diet is rich in omega-3 fatty acids (commonly found in fish) are at significantly lower risk of developing age-related macular degeneration.