Cigarette smoking, fish consumption, omega-3 fatty acid intake, and associations with age-related macular degeneration: the US Twin Study of Age-Related Macular Degeneration.
Seddon JM, George S, Rosner B.
Arch Ophthalmol. 2006 Jul;124(7):995-1001.
PMID: 16832023
Conclusions This study of twins provides further evidence that cigarette smoking increases risk while fish consumption and omega-3 fatty acid intake reduce risk of AMD
Association between vitamin D and age-related macular degeneration in the Third National Health and Nutrition Examination Survey, 1988 through 1994.
Parekh N, Chappell RJ, Millen AE, Albert DM, Mares JA.
Arch Ophthalmol. 2007 May;125(5):661-9.
PMID: 17502506