1. From the Departments of Epidemiology and Biostatistics and
2. Ophthalmology, Erasmus Medical Center, Rotterdam, The Netherlands; the
3. Department of Ophthalmology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands; the
4. From the Departments of Epidemiology and Biostatistics and4Netherlands Institute for Neuroscience, KNAW, Amsterdam, The Netherlands; and the5Department of Ophthalmology, Academic Medical Center, Amsterdam, The Netherlands.