multiple sclerosis is a disease of the central nervous system whose clinical manifestations include animportant group of ocular pathologies , e.g. , unilateral retrobulbar neuritis , uveitis , decreased visual function , nystagmus , internuclear ophthalmoplegia , diplopia , optic papillitis and marcus gunn pupil .
C0026769
multiple sclerosis
C0007682
disease of the central nervous system