nystagmus(redirected from secondary nystagmus)
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A rapid, involuntary, oscillatory motion of the eyeball.
[New Latin, from Greek nustagmos, drowsiness.]
nys·tag′mic (-mĭk) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Medicine) involuntary movement of the eye comprising a smooth drift followed by a flick back, occurring in several situations, for example after the body has been rotated or in disorders of the cerebellum
[C19: New Latin, from Greek nustagmos]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
a persistent, rapid, involuntary side-to-side eye movement.
[1815–25; < New Latin < Greek nystagmós nodding, derivative of nystázein to nod]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
uncontrollable and rapid movement of the eyeball in any direction. — nystagmic, adj.See also: Eyes
-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.
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|Noun||1.||nystagmus - involuntary movements of the eyeballs; its presence or absence is used to diagnose a variety of neurological and visual disorders|
eye movement - the movement of the eyes
physiological nystagmus - small involuntary tremors of the eyeballs; when it is eliminated by stabilizing the image on the retina, visual perception fades rapidly from fatigue of the retinal receptors
rotational nystagmus - nystagmus caused by the body rotating rapidly; large slow movements of the eyeballs are in the direction of rotation
post-rotational nystagmus - nystagmus caused by suddenly stopping the rapid rotation of the body; large slow movements of the eyeballs are in the direction opposite to the direction of rotation
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
n. nistagmo, espasmo involuntario del globo ocular;
palatal ___ → ___ palatal.
English-Spanish Medical Dictionary © Farlex 2012
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.