1. Eye Center, Medical Center–University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
2. Department of Ophthalmology, University Hospital Brandenburg, Brandenburg Medical School Theodor Fontane (MHB), Brandenburg an der Havel, Germany
3. Institute of Molecular and Clinical Ophthalmology Basel (IOB), Basel, Switzerland
4. Moorfields Eye Hospital NHS Foundation Trust, London, UK