Disability, MRI Lesions and Thickness of Retinal Fibers: Evaluation 15 Years After a First Episode of Demyelination

Clinical and paraclinical assessment (cerebral MRI and Optical Coherence Tomography) will be carried out on the same day. Paraclinical evaluation consists in the realization of additional MRI sequences in order to obtain more precise information on brain lesions (unconventional parameters). An optical coherence tomography will also be performed for both eyes to describe the thickness of the different layers of the retina.