1. Department of Ophthalmology, University of Siena, Siena, Italy
2. Retinoblastoma Referral Center, University of Siena, Siena, Italy
3. NeuroImaging and NeuroInterventional Unit, Azienda Ospedaliera Senese, Siena, Italy
4. Neurology and Neurometabolic Unit, University of Siena, Siena, Italy