1. Occupational Medicine UnitUniversity of Pavia and Salvatore Maugeri Foundation, Work and Rehabilitation, IRCCS, Scientific Institute of PaviaItaly
2. Studio Oculistico Fronterré MilanItaly
3. Department of PathologySalvatore Maugeri Foundation, Work and Rehabilitation, IRCCS, Scientific Institute of PaviaItaly
4. Ophthalmic DepartmentUniversity of Pavia and Policlinico S. Matteo Foundation, IRCCSItaly