1. Department of Surgical Sciences, Ophthalmology Uppsala University Uppsala Sweden
2. Department of Clinical Neuroscience, Institute of Neuroscience and Physiology Sahlgrenska Academy, University of Gothenburg Gothenburg Sweden
3. Department of Clinical Neuroscience, Section for Eye and Vision Karolinska Institutet Stockholm Sweden
4. St. Erik Eye Hospital Stockholm Sweden
5. Department of Clinical Sciences, Ophthalmology Skane University Hospital, Lund University Lund Sweden
6. Department of Clinical Sciences, Ophthalmology Umeå University Umeå Sweden
7. Länssjukhuset Ryhov Jönköping Sweden
8. Department of Ophthalmology University Hospital, Örebro University Örebro Sweden