1. Christian-Albrechts-University of Kiel, University Medical Center, Department of Ophthalmology, Arnold-Heller-Str. 3, Kiel, Germany
2. Institute for Biomedical Optics, University of Lübeck and Medical Laser Center Lübeck GmbH, Peter-Monnik-Weg 4, Lübeck, Germany
3. Christian-Albrechts-University of Kiel, Institute of Anatomy, Olshausenstr. 40, Kiel, Germany