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1 INOs in strokeThis video shows 3 patients with vascular risk factors who suffered strokes of the MLF resulting in unilateral INO in each case. In the second case, INO was diagnosed status post cardiac catherization and MRI was found to be normal. In the third case, the patient had a clear left medial rectus palsy...Internuclear Ophthalmoplegia, Abnormal Saccades, Gaze Evoked Nystagmus, Abducting Nystagmus
2 Medial Longitudinal Fasciculus Syndrome with Prominent Spontaneous NystagmusThis is a 60-year-old man who experienced the abrupt onset of diplopia and imbalance. He had typical features of a left medial longitudinal fasciculus (MLF) syndrome including left internuclear ophthalmoplegia (INO) and left hypertropia from skew deviation, but he also had very prominent upbeat-tors...INO; Jerk Nystagmus; Upbeat Nystagmus; Rotary Nystagmus; Skew Deviation; OMS Pons; Abnormal Alignment; Abducting Nystagmus
3 Ocular Motor Signs in Brainstem Demyelinating Disease - Spontaneous Upbeat, Vertical Gaze-Evoked Nystagmus, Slow Saccades, Bilateral Vestibular Loss, INOsThis is a 25-year-old woman who presented with painful vision loss bilaterally two years prior to this video recording, which was diagnosed as optic neuritis. Months later, she experienced oscillopsia and binocular horizontal diplopia and was subsequently diagnosed with multiple sclerosis. No record...Abnormal Saccades; Abnormal VOR-HIT; Abnormal Range; INO; Upbeat Nystagmus; Abducting Nystagmus; Gaze-Evoked Nystagmus
4 Pendular, Gaze-Evoked and Abducting Nystagmus in MSThis is a 40-year-old woman with a history of multiple sclerosis who presented for oscillopsia. On examination, she had bilateral internuclear ophthalmoplegia (INO-adduction lag OU and abducting nystagmus OU), with a corresponding exotropia that increased in right and left gaze. She also had horiz...Jerk Nystagmus; INO; Pendular Nystagmus; Abducting Nystagmus; Gaze-Evoked Nystagmus; Cerebellar OMS
5 Test Your Knowledge - OscillopsiaThis 65-year-old man with multiple sclerosis described that objects in front of him appear to spontaneously jump or move horizontally for the last few months. He reported that his symptoms occur independent of head movements and head impulse testing was normal. After viewing the video, what is the m...Pendular Nystagmus; Jerk Nystagmus; Abducting Nystagmus; Internuclear Ophthalmoplegia
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