1. From the University of Iceland, Reykjavik, Iceland;2Department of Ophthalmology, Landspítali – The National University Hospital of Iceland, Reykjavik, Iceland; and
2. From the University of Iceland, Reykjavik, Iceland;
3. Department of Ophthalmology, Landspítali – The National University Hospital of Iceland, Reykjavik, Iceland; and3Oxymap ehf., Reykjavik, Iceland.