47 Jerky nystagmus
Salient features
History
• Obtain a history regarding cerebellar syndrome: multiple sclerosis, alcohol, etc. (case 46)
• Ear infections (vestibular involvement)
• Horizontal nystagmus with fast components to right or left side (when eliciting nystagmus take care to keep your finger at least 2 ft (60 cm) away from the patient and avoid going laterally beyond the extent of binocular vision)
• Proceed to look for other cerebellar signs (p. 201)
• Tell the examiner that you would like to do the following: