1. Department of Clinical Therapeutics, Alexandra Hospital, National and Kapodistrian University of Athens, 11528 Athens, Greece
2. Second Department of Ophthalmology, Attikon University Hospital, National and Kapodistrian University of Athens, 12462 Athens, Greece
3. Second Department of Neurology, Attikon University Hospital, National and Kapodistrian University of Athens, 12462 Athens, Greece
4. Department of Clinical Electrophysiology of Vision, Athens Eye Hospital, 16675 Athens, Greece