[1] Univ Vita Salute San Raffaele, Sch Med, Milan, Italy
[2] IRCCS San Raffaele Sci Inst, Dept Ophthalmol, Milan, Italy
[3] Vitreous Retina Macula Consultants New York, New York, NY USA
[4] NYU Grossman Sch Med, New York, NY USA
[5] Northwestern Univ, Feinberg Sch Med, Dept Ophthalmol, Chicago, IL USA
[6] IRCCS San Raffaele Sci Inst, Dept Ophthalmol, Via Olgettina 60, I-20132 Milan, Italy