Abstract

Multiple sclerosis is a chronic inflammatory disease of central nervous system that commonly affects young adults. Although ocular movement disturbances are commonly encountered in multiple sclerosis, bilateral horizontal gaze palsy is quite rare. We present a case of young woman presented with dizziness, intractable vomiting and visual disturbances for one week, on examination found to have complete bilateral horizontal gaze palsy while vertical gaze was intact. Brain MRI showed a small lesion in posterior part of medial pontine tegmentum bilaterally which was responsible for patient`s symptoms. She received five doses of one-gram methylprednisolone, her symptoms gradually improved over one week after treatment.