1. Department of Ophthalmology University of Basel Basel Switzerland
2. Department of Clinical Neuroscience, Division of Eye and Vision St. Erik Eye Hospital, Karolinska Institutet Stockholm Sweden
3. Department of Ophthalmology, Cantonal Hospital Aarau Aarau Switzerland
4. Institute of Molecular and Clinical Ophthalmology Basel Basel Switzerland
5. Moorfields Eye Hospital NHS Foundation Trust London UK
6. Department of Ophthalmology, Inselspital, Bern University Hospital University of Bern Bern Switzerland