1. Department of Ophthalmology, American University of Beirut, Beirut, Lebanon
2. Department of Ophthalmology, Rafic Hariri University Hospital, Beirut, Lebanon
3. Department of Ophthalmology, Hospital Clinico San Carlos, Madrid, Spain
4. Department of Ophthalmology, Gazi University, School of Medicine, Ankara, Turkey
5. Department of Ophthalmology, Comenius University, Bratislava, Slovakia
6. Department of Ophthalmology and IRCCS Ospedale San Raffaele, University Vita-Salute, Milan, Italy