1. From the Departments of Nutrition (Q.Q., A.K.C., W.C.W., E.B.R., F.B.H., L.Q.) and Epidemiology (G.C.C., W.C.W., E.B.R., F.B.H.), Harvard School of Public Health, Boston, MA; Channing Division of Network Medicine, Department of Medicine (Y.L., J.H.K., G.C.C., L.R.P., W.C.W., E.B.R., F.B.H., L.Q.), Brigham and Women's Hospital and Harvard Medical School, Boston, MA; and Massachusetts Eye and Ear Infirmary (L.R.P.), Department of Ophthalmology, Harvard Medical School, Boston, MA.