1. From the Departments of Epidemiology and Biostatistics (M.K.I., J.C.M.W., J.R.V., M.M.B.B., A.H., P.T.V.M.d.J.) and Ophthalmology (J.R.V.), Erasmus Medical Center, Rotterdam; The Netherlands Ophthalmic Research Institute (P.T.V.M.d.J.), Royal Netherlands Academy of Arts and Sciences, Amsterdam; and Department of Ophthalmology (P.T.V.M.d.J.), Academic Medical Center, Amsterdam, the Netherlands.