Maurizio Balestrino1,2, Enrico Adriano3. 1. Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics and Mother and Child Sciences (DINOGMI), University of Genoa, Genoa, Italy. mbalestrino@neurologia.unige.it. 2. IRCCS Ospedale Policlinico San Martino, Genoa, Italy. mbalestrino@neurologia.unige.it. 3. Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics and Mother and Child Sciences (DINOGMI), University of Genoa, Genoa, Italy.