Table 1.
Clinical profiles of the patients with primary position upbeat nystagmus (PPUN) in multiple sclerosis (MS)

B: bilateral, BC: brachium conjunctivum, cau.: caudal, DN: downbeat nystagmus, dor.: dorsal, F: female, GEN: gaze-evoked nystagmus, Hori.: horizontal, INO: internuclear ophthalmoplegia, L: left, med.: medulla, pont.: pontine, R: right, ro.: rostral, teg.: tegmentum.