1. Department of Neurology Hôpital Fondation Adolphe de Rothschild Paris Cedex 19 France
2. Service de Neurologie Sclérose en Plaques Pathologies de la Myéline et Neuro‐Inflammation Centre de référence des Maladies Inflammatoires Rares du Cerveau et de la Moelle (MIRCEM) Hôpital Neurologique Pierre Wertheimer Lyon University Hospital Lyon France
3. Department of Neurology University Hospital of Montpellier Montpellier France
4. Department of Neurology University Hospital of Strasbourg Strasbourg France
5. Department of Neurology Pôle de Neurosciences Cliniques, APHM Hôpital de la Timone Aix Marseille University Marseille France
6. Department of Neurology U 1172, CRC‐SEP University Hospital of Lille Lille France
7. Department of Neurology University Hospital of Toulouse Toulouse France
8. Unité de Recherche Clinique Cote d’Azur UR2CA, CRC‐SEP Hôpital Pasteur 2 Neurologie URRIS Nice France
9. Department of Internal Medecine Centre Hospitalier National d’Ophtalmologie des XV‐XX Paris France
10. Department of Neurology University Hospital of Nancy Nancy France
11. Department of Neurology University Hospital of Caen Caen France
12. Department of Neurology CRTI‐Inserm U1064, CIC004 University Hospital of Nantes Nantes France
13. Department of Neurology University Hospital of Nimes Nimes France
14. Department of Neurology University Hospital of Rouen Rouen France
15. Department of Neurology University Hospital of Bordeaux Bordeaux France
16. Department of Ophtalmology AP‐HP, Hôpital Pitié‐Salpêtrière Paris France
17. Department of Ophtalmology Hôpital Fondation Adolphe de Rothschild Paris cedex 19 France
18. Department of Neurology Centre de référence des maladies inflammatoires rares du cerveau et de la moelle (MIRCEM) AP‐HP, Hôpital Pitié‐Salpêtrière Paris France