Affiliation: | 1. Neurology Department, Mansoura University Hospital deltaneuro@mans.edu.eghttps://orcid.org/0000-0003-2879-7392;3. Neurology Department, Mansoura University Hospital https://orcid.org/0000-0001-8085-496X;4. Neurology Department, Mansoura University Hospital;5. Ophthalmic Center, Mansoura University , Mansoura, Egypt https://orcid.org/0000-0002-5962-6820;6. Ophthalmic Center, Mansoura University , Mansoura, Egypt https://orcid.org/0000-0003-0421-7525;7. Neurology Department, Mansoura University Hospital https://orcid.org/0000-0002-1876-4338 |