1. Eye Clinic, Department of Biomedical and Clinical Science, Luigi Sacco Hospital, University of Milan, Milan - Italy
2. Department of Clinical Sciences and Community Health, University of Milan, Ophthalmological Unit, IRCCS-CÀ Granda Foundation–Ospedale Maggiore Policlinico, Milan - Italy
3. Department of Clinical Sciences, Luigi Sacco Hospital, Section of Infectious and Tropical Diseases, University of Milan, Milan - Italy