Daniel R. Gold, DO, Departments of Neurology, Ophthalmology, Neurosurgery, Otolaryngology - Head & Neck Surgery, The Johns Hopkins School of Medicine
This is a 40-yo-woman with MS and bilateral optic nerve disease who presented with a year's long history of oscillopsia, which was related to elliptical pendular nystagmus. The appearance of elliptical nystagmus is the result of out of phase horizontal and vertical components. She had a variety of posterior fossa lesions on MRI, and there was mild improvement with gabapentin. Memantine is another treatment option, and sometimes using the two together is more effective than using either individually.
Spencer S. Eccles Health Sciences Library, University of Utah