nystagmus


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nys·tag·mus

 (nĭ-stăg′məs)
n.
A rapid, involuntary, oscillatory motion of the eyeball.

[New Latin, from Greek nustagmos, drowsiness.]

nys·tag′mic (-mĭk) adj.

nystagmus

(nɪˈstæɡməs)
n
(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]

nys•tag•mus

(nɪˈstæg məs)

n.
a persistent, rapid, involuntary side-to-side eye movement.
[1815–25; < New Latin < Greek nystagmós nodding, derivative of nystázein to nod]
nys•tag′mic, adj.

nystagmus

uncontrollable and rapid movement of the eyeball in any direction. — nystagmic, adj.
See also: Eyes
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.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
Translations
nystagmus

nys·tag·mus

n. nistagmo, espasmo involuntario del globo ocular;
palatal ______ palatal.

nystagmus

n nistagmo
References in periodicals archive ?
A study into the accuracy, reliability and safety of the novel new device, published in the journal Scientific Reports, found the technology to be 99 per cent accurate at detecting eye flicker (nystagmus).
The charity hog roast and promise auction in aid of Nystagmus Network which we helped the Pennington family with, raised a fantastic amount of PS16,235.
Evie Lewis from Rhostryfan near Caernarfon has been training hard for the 10-mile hike from Pen-y-Pass to the summit of Yr Wyddfa (Snowdon) and back down again to Llanberis, in spite of having Turners Syndrome and Nystagmus. Evie, who is hoping to raise funds for her school in the process, said: "My life with Turners Syndrome means my growth, organs and reproductive system are all affected.
Nystagmus has also been reported as an important ocular sign (2-4).
The data collected included age, sex, duration of hearing loss at the time of treatment, and the presence or absence of tinnitus, vertigo, diabetes, nystagmus, and canal paresis.
Therefore, this study aims to describe and compare the results of ocular tests (saccadic movement, pendular tracking, and optokinetic nystagmus) among the groups with dyslexia, learning disorders and control group.
It can be defined as transient vertigo induced by rapid change in head position, associated with a characteristic paroxysmal positional nystagmus. Posterior canal benign paroxysmal positional vertigo is the most frequent form of BPPV.
Specialists in ophthalmology and radiology cover examination of the afferent visual system, visual fields, magnetic resonance imaging for the ophthalmologist, transient visual loss/retinal artery occlusion, optic nerve disorders, optic chiasm, retrochiasmal disorders, non-physiologic visual loss, neuro-ophthalmologic examinations--efferent systems, ocular misalignment and other ocular motor disorders, nystagmus, pupil, and orbital disease of neuro-ophthalmic significance.
It is a diagnostic test to record involuntary movements of the eye caused by a condition known as nystagmus. It can also be used to diagnose the cause of vertigo, dizziness or balance dysfunction by testing the vestibular system.
Researchers at University College London, Moorfields Eye Hospital, and the University of Oxford are developing magnetic implants to treat patients with nystagmus.