1. Department of Ophthalmology, Oslo University Hospital, Kirkeveien 166, 0450 Oslo, Norway
2. Center for Eye Research and Innovative Diagnostics, Department of Ophthalmology, Institute for Clinical Medicine, University of Oslo, Kirkeveien 166, 0450 Oslo, Norway
3. Eye Hospital, University Medical Centre Ljubljana, Zaloška Cesta 2, 1000 Ljubljana, Slovenia
4. Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia
5. Department of Ophthalmology, University of Split School of Medicine and University Hospital Centre, 21000 Split, Croatia