Early disability in ambulatory patients with multiple sclerosis: optical coherence tomography versus visual evoked potentials, a comparative study

Multiple sclerosis (MS) is a common cause of neurological disabilities in adults and commonly affects the visual pathway. The objective of this study is to assess and compare the sensitivity of visual evoked potentials (VEP) and optical coherence tomography (OCT) as measures of early disability in ambulatory patients with MS. Forty-four patients with MS with Expanded Disability Status Scale (EDSS) of ≤ 4.5 (ambulatory patients) and 14 healthy...