Video 5.30 The appearance of infantile nystagmus in adults from Neuro-Ophthalmology and Neuro-Otology Textbook
Creator
Daniel R. Gold, DO
Affiliation
(DRG) Departments of Neurology, Ophthalmology, Neurosurgery, Otolaryngology - Head & Neck Surgery, Emergency Medicine, and Medicine, The Johns Hopkins School of Medicine, Baltimore, Maryland
𝗢𝗿𝗶𝗴𝗶𝗻𝗮𝗹 𝗗𝗲𝘀𝗰𝗿𝗶𝗽𝘁𝗶𝗼𝗻: Presented here are two patients with congenital nystagmus demonstrating characteristic features including: mixed pendular and jerk nystagmus (usually gaze-evoked) waveforms, stays horizontal even in vertical gaze, suppression with convergence, strabismus and a latent component (common but not always present) and its common association with albinism. Also, there is often a null point where nystagmus is minimal, and optokinetic nystagmus may be in the opposite direction of what would be expected given the direction of an optokinetic stimulus. 𝗡𝗲𝘂𝗿𝗼-𝗼𝗽𝗵𝘁𝗵𝗮𝗹𝗺𝗼𝗹𝗼𝗴𝘆 𝗮𝗻𝗱 𝗡𝗲𝘂𝗿𝗼-𝗼𝘁𝗼𝗹𝗼𝗴𝘆 𝗧𝗲𝘅𝘁𝗯𝗼𝗼𝗸 𝗟𝗲𝗴𝗲𝗻𝗱: Seen here are two adult patients with infantile nystagmus demonstrating characteristic features including: mixed pendular and jerk nystagmus (usually gaze-evoked) waveforms; nystagmus is horizontal even in vertical gaze; nystagmus damps with convergence; strabismus and a latent nystagmus component (common but not always present); association with albinism. Also, there is often a null point where nystagmus is minimal, and optokinetic nystagmus may be in the opposite direction of what would be expected given the direction of an optokinetic stimulus. https://collections.lib.utah.edu/ark:/87278/s67693mg
