1. Wellington Eye Clinic, Dublin, Ireland
2. Université de Paris, Hôpital Cochin, Paris, France
3. S. Fyodorov Eye Microsurgery Federal State Institution, Moscow, Russia
4. University of Health Sciences, Ankara City Hospital, Ankara, Turkey
5. Augenklinik am Neumarkt Schildergasse, Köln, Germany
6. Department of Ophthalmology, Fernando Fonseca Hospital, Amadora, Portugal
7. Chair and Department of General and Pediatric Ophthalmology, Medical University of Lublin, Lublin, Poland
8. Department of Ophthalmology, University of Alcalá, Madrid, Spain
9. Eye Clinic, Department of Medicine, Surgery and Health Sciences, University of Trieste, Trieste, Italy
10. Department of Ophthalmology, University Hospital of Zürich, University of Zürich, Zürich, Switzerland
11. Faculty of Medical Sciences, Collegium Medicum, Cardinal Stefan Wyszyński University, Warsaw, Poland