2 IRCCS - Istituto di Ricerche Farmacologiche Mario Negri, Milan, Italy.
3 1st University Department of Ophthalmology, Aristotle University of Thessaloniki, Thessaloniki, Greece.
4 Department of Ophthalmology, University of Ioannina, Ioannina, Greece.
5 Hamilton Glaucoma Center, Shiley Eye Institute, and the Department of Ophthalmology, University of California San Diego, San Diego, USA.
6 Department of Surgical & Clinical, Diagnostic and Pediatric Sciences, Section of Ophthalmology, University of Pavia - IRCCS Fondazione Policlinico, San Matteo, Pavia, Italy. luciano.quaranta@unipv.it.