Correspondence

Affiliations

• ¹ Department of Ophthalmology, Universitätsspital Basel, Basel, Switzerland.
• ² Department of Ophthalmology, University Hospital Bonn, Bonn, Germany.
• ³ Center of Ophthalmology, University Eye Hospital, University Hospital Tuebingen, Eberhard-Carls University Tuebingen, Tuebingen, Germany.
• ⁴ Department of Ophthalmology, University Clinic Essen, Essen, Germany.
• ⁵ Department of Ophthalmology, University Clinic Muenster, Muenster, Germany.
• ⁶ Department of Ophthalmology, Ludwigshafen Hospital, Ludwigshafen am Rhein, Germany.
• ⁷ St Paul's Eye Unit, Royal Liverpool University Hospital, Liverpool, UK.
• ⁸ Department of Ophthalmology, University Clinic Göttingen, Goettingen, Germany.
• ⁹ Department of Ophthalmology, St. Franziskus- Hospital, Muenster, Germany.
• ¹⁰ Department of Ophthalmology, LMU University Hospital, Munich, Germany.
• ¹¹ Department of Ophthalmology, University Clinic Greifswald, Greifswald, Germany.
• ¹² Department of Ophthalmology, University Hospital RWTH, Aachen, Germany.
• ¹³ Department of Ophthalmology, University Clinic Ulm, Ulm, Germany.
• ¹⁴ Department of Ophthalmology, University Clinic Leipzig, Leipzig, Germany.
• ¹⁵ Department of Ophthalmology, University of Luebeck, University Medical Center Schleswig-Holstein, Luebeck, Germany.