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1 Gaze-Evoked and Centripetal Nystagmus in Creutzfeldt-Jakob DiseaseThis is a 65-year-old woman who experienced a progressive cerebellopathy over several months. Initially, she presented with mild gait imbalance and positional vertigo, and there was only apogeotropic positional nystagmus (more pronounced in supine roll test compared to Dix-Hallpike) with a very slig...Jerk Nystagmus; Gaze-Evoked Nystagmus; Rebound Nystagmus
2 Gaze-Evoked, Rebound, and Centripetal Nystagmus in Cerebellar DegenerationA 68-year-old female reported a 2-year history of progressive gait imbalance, falls, dizziness and vertical oscillopsia. She described that dizziness and oscillopsia were worst when looking down. There was no family history of ataxia. Composite gaze with fixation was recorded with video-oculography ...Gaze-evoked Nystagmus; Rebound Nystagmus; Centripetal Nystagmus; Cerebellar Degeneration
3 Gaze-evoked and rebound nystagmus in a cerebellar syndrome30-yo-man with the subacute onset of a cerebellar syndrome. After extensive evaluation and progression, it was thought that this represented an autoimmune process and there was some improvement with immunosuppression. He had a variety of cerebellar ocular motor findings, including gaze-evoked nystag...Jerk nystagmus; End-gaze nystagmus; Gaze-evoked nystagmus; Rebound nystagmus; Cerebellar pathology
4 Ocular Motor Signs in SCA 6This is a 45-yo-man who was recently diagnosed with SCA 6. There was no clear spontaneous downbeat nystagmus (DBN) in primary gaze, although DBN could clearly be provoked by convergence. Other ocular motor features included choppy pursuit and VOR suppression horizontally and vertically, in addition ...Abnormal Convergence; Abnormal VORS; OMS Cerebellar; Downbeat Nystagmus; Jerk Nystagmus; Gaze Evoked Nystagmus; Rebound Nystagmus
5 Ocular Motor Signs of Cerebellar Ataxia - Gaze-Evoked Nystagmus, Saccadic Pursuit, and VOR supressionThis is a 30-year-old woman with a several year long history of imbalance due to cerebellar ataxia of unclear etiology. Seen in this video are common ocular motor signs in patients with advanced cerebellar dysfunction including: 1) saccadic smooth pursuit, 2) saccadic vestibulo-ocular reflex suppres...Jerk Nystagus; Gaze-Evoked Nystagmus; Abnormal Pursuit; Abnormal VORS; Rebound Nystagmus
6 Periodic Alternating Nystagmus due to Spinocerebellar Ataxia Type 6This 50-yo-man complained of imbalance for several years and more recently oscillopsia. On examination, there was saccadic pursuit and VOR suppression in addition to gaze-evoked nystagmus with rebound, raising suspicion for a vestibulocerebellar localization. Additionally, there was periodic alterna...Cerebellar; Jerk nystagmus; Periodic alternating nystagmus; Gaze evoked nystagmus; Rebound nystagmus
7 Rebound nystagmusThis is a 50-yo-man who presented for dizziness and imbalance. His exam demonstrated choppy smooth pursuit and VOR suppression as well as mild gait ataxia. There was mild right-beating nystagmus in right gaze and left-beating nystagmus in left gaze without vertical gaze-evoked nystagmus. Occasionall...Cerebellar, Jerk Nystagmus, Gaze Evoked Nystagmus, Rebound Nystagmus
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