Results 211 to 220 of about 54,152 (259)
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Current Opinion in Opthalmology, 1999
Nystagmus continues to be a complex subject of study. Our ability to characterize nystagmus has improved, but our comprehension of the oculomotor control process underlying this condition remains vague. We review recent advances in the characterization, classification, and treatment of nystagmus. Congenital forms of nystagmus, nystagmus associated with
D E, Neely, D T, Sprunger
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Nystagmus continues to be a complex subject of study. Our ability to characterize nystagmus has improved, but our comprehension of the oculomotor control process underlying this condition remains vague. We review recent advances in the characterization, classification, and treatment of nystagmus. Congenital forms of nystagmus, nystagmus associated with
D E, Neely, D T, Sprunger
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Current Opinion in Ophthalmology, 1996
Acquired nystagmus causes excessive motion of images on the retina, which often reduces visual acuity and produces oscillopsia (illusory motion of the seen world). The pathogenesis of several forms of acquired nystagmus is now better understood and can be related to abnormalities of mechanisms that normally hold gaze steady.
L, Averbuch-Heller, R J, Leigh
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Acquired nystagmus causes excessive motion of images on the retina, which often reduces visual acuity and produces oscillopsia (illusory motion of the seen world). The pathogenesis of several forms of acquired nystagmus is now better understood and can be related to abnormalities of mechanisms that normally hold gaze steady.
L, Averbuch-Heller, R J, Leigh
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Current Neurology and Neuroscience Reports, 2001
Advances in understanding the organization of the ocular motor system, including its anatomy and pharmacology, have provided new insights into the pathogenesis of various forms of nystagmus. The discoveries of fibromuscular pulleys that govern the pulling directions of the extraocular muscles has provided a new conceptual framework to account for the ...
J S, Stahl, R J, Leigh
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Advances in understanding the organization of the ocular motor system, including its anatomy and pharmacology, have provided new insights into the pathogenesis of various forms of nystagmus. The discoveries of fibromuscular pulleys that govern the pulling directions of the extraocular muscles has provided a new conceptual framework to account for the ...
J S, Stahl, R J, Leigh
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Documenta Ophthalmologica, 1982
In the last ten to fifteen years refinements in the registration techniques for ocular movements have allowed a more precise definition of nystagmus forms and have thus brought new insight into their pathophysiology. As a result we can distinguish four types of disturbances of the subsystem for the slow movements, which are fundamental to nystagmus ...
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In the last ten to fifteen years refinements in the registration techniques for ocular movements have allowed a more precise definition of nystagmus forms and have thus brought new insight into their pathophysiology. As a result we can distinguish four types of disturbances of the subsystem for the slow movements, which are fundamental to nystagmus ...
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Nystagmus congénital. Nystagmus manifeste/latent. Nystagmus acquis
EMC - Ophtalmologie, 2005Resume Les caracteristiques essentielles des nystagmus precoces et des nystagmus acquis sont les suivantes : les nystagmus congenitaux sont concordants, pendulaires ou a ressort, avec une phase lente a vitesse croissante. Les lesions sensorielles sont frequentes.
A. Spielmann, A.C. Spielmann
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Current Opinion in Ophthalmology, 1994
Ophthalmologic nystagmus can be congenital and manifest/latent both of whose waveforms, compensatory mechanisms, and treatment are different. Physiologically, latent nystagmus may be reversed at will, whereas nystagmus and head nodding may be simultaneously triggered at will.
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Ophthalmologic nystagmus can be congenital and manifest/latent both of whose waveforms, compensatory mechanisms, and treatment are different. Physiologically, latent nystagmus may be reversed at will, whereas nystagmus and head nodding may be simultaneously triggered at will.
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Current Opinion in Ophthalmology, 1995
Electronystagmographic studies with an attempt to quantify various parameters of congenital nystagmus are interesting although not conclusive clinically. This is due to the spontaneous variability of congenital nystagmus. A qualitative study (position and velocity) may be sufficient for clinical examination and treatment of congenital nystagmus.
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Electronystagmographic studies with an attempt to quantify various parameters of congenital nystagmus are interesting although not conclusive clinically. This is due to the spontaneous variability of congenital nystagmus. A qualitative study (position and velocity) may be sufficient for clinical examination and treatment of congenital nystagmus.
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Optometry and Vision Science, 1970
ABSTRACT The subject of voluntary nystagmus is presented and defined. A case report of a young female demonstrating this unusual ability is presented. Past descriptions of this condition were studied and the similarities and variations found in this patient are described.
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ABSTRACT The subject of voluntary nystagmus is presented and defined. A case report of a young female demonstrating this unusual ability is presented. Past descriptions of this condition were studied and the similarities and variations found in this patient are described.
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Otolaryngology–Head and Neck Surgery, 1975
Positional nystagmus may be persistent or transitory. Of the persistent forms, type I refers to nystagmus changing direction in different head positions and type II to nystagmus beating in a single direction. Both types may denote either peripheral or central abnormality.
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Positional nystagmus may be persistent or transitory. Of the persistent forms, type I refers to nystagmus changing direction in different head positions and type II to nystagmus beating in a single direction. Both types may denote either peripheral or central abnormality.
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Archives of Neurology & Psychiatry, 1946
Nystagmus is a common sign in diseases of the nervous system, and it is also observed in diseases of the eye and of the inner ear. It may, however, be a normal phenomenon in certain circumstances, or it may be elicited experimentally or as part of the clinical examination.
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Nystagmus is a common sign in diseases of the nervous system, and it is also observed in diseases of the eye and of the inner ear. It may, however, be a normal phenomenon in certain circumstances, or it may be elicited experimentally or as part of the clinical examination.
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