Wall-eyed bilateral internuclear ophthalmoplaegia (WEBINO) from a paramedian mesencephalic infarct

Abstract

An 84-year-old man with a history of hypertension, diabetes mellitus and ischaemic heart disease, was admitted for sudden onset binocular diplopia and unsteady gait. Physical examination showed primary gaze exotropia of both eyes (figure 1), bilateral internuclear ophthalmoplaegia and impaired vertical gaze of his right eye …