1. Department of Ophthalmology, University of Bonn, Bonn, Germany
2. Nuffield Laboratory of Ophthalmology, Sleep and Circadian Neuroscience Institute, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, United Kingdom
3. Institute for Physiology and Pathophysiology, Department of Neurophysiology, Philipps-University Marburg, Marburg, Germany
4. Institute for Numerical Simulation, University of Bonn, Bonn, Germany
5. Institute for Medical Biometry, Informatics and Epidemiology, Medical Faculty, University of Bonn, Bonn, Germany
6. John A. Moran Eye Center, University of Utah, Salt Lake City
7. Ophthalmic Genetics & Visual Function Branch, National Eye Institute, National Institutes of Health, Bethesda, Maryland