Visual Processing Speed and Objective Analysis of Ocular Movements in Multiple Sclerosis

Inclusion Criteria: * Diagnosis of Multiple Sclerosis * Best distant corrected visual acuity equal or greater than 0.7 (decimal scale). Glasses or soft contact lenses users. * Best close corrected visual acuity equal to or greater than 20/30 (Snellen scale).Glasses or soft contact lenses users. Exclusion Criteria: * Patients with a history of acute optic neuritis (ON) and/or who experienced an episode of ON \<6 months prior to the study, to avoid potential interference of papilledema with accurate peripapillary RNFL thickness measurements. * Patients with other retinal and optic nerve diseases, advanced cataracts according to the international Lens Opacities Classification System III (LOCS III) (opacities greater than C2N2) * Patients with other ophthalmological diseases that could affect central visual acuity * Subjects with high refractive error (+ - 6 diopters). * Subjects with other demyelinating disorders (neuromyelitis optica or acute disseminated encephalomyelitis).