Affiliation: | 1. Department of Ophthalmology, Stavanger University Hospital, Stavanger, Norway;2. Department of Clinical Medicine, University of Bergen, Bergen, Norway;3. Department of Quality and Health Technology, University of Stavanger, Stavanger, Norway;4. Department of Medical Biochemistry, Oslo University Hospital, Oslo, Norway;5. Department of Research, Section of Biostatistics, Stavanger University Hospital, Stavanger, Norway;6. Department of Ophthalmology, Hospital of Southern Norway, Arendal, Norway;7. Department of Ophthalmology, Vestre Viken Hospital Trust, Drammen, Norway;8. Norwegian Association of the Blind and Partially Sighted, Oslo, Norway |