1. Laboratorio Clinico Anatomo-Funzionale per la Diagnosi e il Trattamento del Glaucoma e Della Malattie Neurooftalmologiche, Clinica Oculistica, DiNOGMI, University of Genoa, Genoa, Italy.
2. Ophthalmology Unit, Department of Surgery, University of Siena, Siena, Italy.
3. Clinica Oculistica, University of Pisa, Pisa, Italy.
4. Eye Clinic, San Paolo Hospital, University of Milan, Milan, Italy.
5. Department of Ophthalmology, St. Andrea Hospital, University La Sapienza, Rome, Italy.