NOVEL - Robert B. Daroff Collection
 
Filters: Collection: "ehsl_novel_rbd"
1 - 25 of 13
Number of results to display per page
TitleDescriptionType
1 Alexander's LawThis describes the observed increase in vestibular nystagmus with gaze in the direction of the fast phase, and its decrease with gaze in the slow phase direction.Image/MovingImage
2 Anatomy and Physiology of NystagmusThe role of the cerebellum in modifying the output of the neural integrator is discussed. Impaired integration causes jerk nystagmus with increasing or decreasing velocity exponential slow phases.Image/MovingImage
3 Bilateral Internulcear OphthalmoplegiaA woman with a bilateral INO demonstrates impaired adduction and nystagmus of the abducting eyes. Her vertical gaze is intact. The dissociated optokinetic nystagmus, due to an inability of the medial recti to generate normal saccades, is again shown.Image/MovingImage
4 Cerebral Control of Eye MovementsIn this series, the purpose and nomenclature of eye movements are described, with the anatomical pathways generating and controlling the cortically-driven movements -- saccades and smooth pursuit in horizontal gaze, upgaze and downgaze -- discussed in detail. The importance of each of the three sac...Image/MovingImage
5 Downbeat NystagmusPrimary position downbeat nystagmus is demonstrated, with a list of the common causes.Image/MovingImage
6 Eyelid NystagmusLid nystagmus is of three types. The most common is associated with vertical ocular nystagmus with the lid movement being synchronous with the eyes, but with greater aplitutde. The second type is associated with gaze evoked horizontal nystagmus and may occur in the lateral medullary syndrome. A p...Image/MovingImage
7 Nystagmus NomenclatureA brief discussion of the various types of nystagmus is provided.Image/MovingImage
8 Parinaud's Syndrome or Dorsal Midbrain SyndromeAlso known as the pretectal, or sylvian aqueduct syndromes, it is characterized by paralysis of upgaze to both saccades and pursuit. In this video, the causes of Parinaud's, along with its signs of large pupils with light-near dissociation, spastic-paretic accommodation, pathologic lid retraction (...Image/MovingImage
9 Periodic Alternating NystagmusA patient with PAN is shown with a discussion of its appearance and etiology.Image/MovingImage
10 See-saw NystagmusTwo patients with see-saw nystagmus are presented. The nystagmus is usually due to a suprasellar lesion associated with a bitemporal hemianopsia or a rostral midbrain lesion. The nystagmus is conjugate and torsional with a dissociated vertical vector so that the intorting eye rises and the extortin...Image/MovingImage
11 Up-beat Nystagmus with Palatal MyoclonusA woman who appears to have upbeat nystagmus is also noted to have palatal, labial, and sternocleidomastoid myoclonus.Image/MovingImage
12 Upbeat NystagmusA female patient with upbeating nystagmus that increases in amplitude with upward gaze is shown. This type of nystagmus commonly occurs from a lesion involving one of three regions: the ponto-medullary junction, ponto-mesencephalic junction, and the anterior cerebellum. Etiologies of these lesions...Image/MovingImage
13 Voluntary NystagmusIn this video, a woman shows her ability to voluntarily induce an ocular oscillation. It is called "voluntary nystagmus", although the oscillation consist of back-to-back saccades, such as occurs in ocular flutter. Clues to the voluntary nature of this oscillation are mentioned. At times, however, ...Image/MovingImage
1 - 25 of 13