1. Department of Ophthalmology, Faculty of Medicine and Health Örebro University Örebro Sweden
2. Department of Ophthalmology Halland Hospital Halmstad Sweden
3. Department of Paediatrics, Institute of Clinical Sciences, The Queen Silvia Children's Hospital Sahlgrenska University Hospital Gothenburg Sweden
4. Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy University of Gothenburg Gothenburg Sweden
5. Department of Ophthalmology Sahlgrenska University Hospital, Region Västra Götaland Mölndal Sweden