1. Vitreoretinal Surgery Unit, Isola Tiberina - Gemelli Isola Hospital, Rome, Italy
2. Faculty of Medicine and Surgery, Catholic University of the Sacred Heart, Rome, Italy
3. Ophthalmology Unit, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
4. Ophthalmology Unit, ASST Melegnano e della Martesana, Vizzolo Predabissi, Italy