Nystagmus: Causes & Reasons

Possible Causes for Nystagmus

Periodic alternating nystagmus (PAN) is a spontaneous horizontal nystagmus that reverses direction periodically. PAN has been reported in acquired and congenital forms. [ncbi.nlm.nih.gov]

Periodic alternating nystagmus is a rare central nervous system disorder in which the eyes undergo a horizontal jerk nystagmus that periodically reverses direction. [ncbi.nlm.nih.gov]

Three patients developed a spontaneous "irritative" nystagmus during the early post-treatment period. [ncbi.nlm.nih.gov]

Benign Paroxysmal Positional Vertigo

A 50-year-old woman with BPPV who showed an 18 degree spontaneous nystagmus treated with Epley maneuver and a 53-year-old man with 3 degree spontaneous nystagmus. [ncbi.nlm.nih.gov]

Down-beating positional nystagmus is typically associated with central nervous system disease. [ncbi.nlm.nih.gov]

[…] torsional nystagmus in SSC BPPV versus up-beating torsional nystagmus in PSC BPPV. [ncbi.nlm.nih.gov]

Cerebellar Stroke

Remaining 8 patients were also symptomatic for vertigo, but they had spontaneous nystagmus. The latter group was called "disease control." [ncbi.nlm.nih.gov]

It is important to observe the nystagmus periodically after onset. [ncbi.nlm.nih.gov]

Patients with symptoms commonly peripheral in etiology (nystagmus, tinnitus, gait instability, etc.) were included in the study. [ncbi.nlm.nih.gov]

Vestibular Neuronitis

Abstract We evaluated the vestibular functions, especially for positional nystagmus and caloric nystagmus, in 43 cases of vestibular neuronitis for long periods after its [ncbi.nlm.nih.gov]

[…] vestibular nystagmus. [aao.org]

ENG showed no nystagmus when the head was in neutral position (30 degrees upward tilt from supine), and a weak right beating nystagmus (slow phase velocity 15–19 degrees per [bmcneurol.biomedcentral.com]

Vertebrobasilar Insufficiency

The effect of these drugs on vestibular nystagmus was studied in Alsatian dogs before and after occluding one vertebral artery. [ncbi.nlm.nih.gov]

The effect of the two drugs on the vestibular nystagmus was studied in Alsatian dogs before and after occluding one vertebral artery. [ncbi.nlm.nih.gov]

An abnormal positional nystagmus was observed when he rotated his head to the left. [ncbi.nlm.nih.gov]

Labyrinthitis

Nystagmus type: Nystagmus is spontaneous. It is usually fine horizontal but may be mixed horizontal-torsional. [patient.info]

Symptoms and Signs Symptoms of purulent labyrinthitis include Severe vertigo and nystagmus Nausea and vomiting Tinnitus Varying degrees of hearing loss Pain and fever are [merckmanuals.com]

Nystagmus which changes direction on eccentric gaze (i.e., right beating nystagmus with right gaze and left beating nystagmus with left gaze, with or without nystagmus with [clinicaladvisor.com]

Cerebellar Infarction

(SN) or direction changed bidirectional gaze-evoked nystagmus (GEN). [ncbi.nlm.nih.gov]

To define the characteristics and mechanism of head-shaking nystagmus in central vestibulopathies, we investigated spontaneous nystagmus and head-shaking nystagmus in 72 patients [ncbi.nlm.nih.gov]

KEYWORDS: Cerebellar infarction; Cerebellum; Ocular fixation; Spontaneous nystagmus [ncbi.nlm.nih.gov]

Central Positional Vertigo

Effect of Fixation on Nystagmus 4. Vestibular versus Central Nystagmus 5. [slideshare.net]

nystagmus on head-shaking. [dizziness-and-balance.com]

nystagmus. [8] Congenital (motor) nystagmus (e.g. [eyewiki.aao.org]

Wernicke Encephalopathy

An examination revealed spontaneous upbeat nystagmus ( Video 1 ), gaze-evoked nystagmus ( Video 2 ), and gait ataxia. She had no ophthalmoplegia. [nejm.org]

Nystagmus (usually horizontal) is the most common ocular finding. Prominent nystagmus in the abducting eye is characteristic of internuclear ophthalmoplegia. [clinicaladvisor.com]

The oculomotor manifestations are: nystagmus, bilateral lateral rectus palsies, and conjugate gaze palsies reflecting cranial nerve involvement of the oculomotor, abducens [emedicine.medscape.com]

Brain Stem Infarction

In the author's experience, these patients often exhibit rebound nystagmus, which is a variant of gaze-evoked nystagmus. [dizziness-and-balance.com]

Increased white matter signal on Flair in pons, associated with upbeating nystagmus and ataxia. [dizziness-and-balance.com]

Upbeat nystagmus may occur. Small vessel disease (diabetes, hypertension, hypercholesterolemia) is the usual cause. Pontine hyperintense lesions. [tchain.com]

Leigh's Disease

The authors present the case of a 9-year-old girl with dorsal midbrain syndrome causing convergence retraction nystagmus. [healio.com]

A 4 1/2-month-old girl suffered from psychomotor retardation, generalized hypotonia, poor feeding, hyperreflexia, nystagmus, optical atrophy and choreoathetosis from the age [ncbi.nlm.nih.gov]

Extraocular movements showed greatly reduced pursuit and saccades in elevation and convergence–retraction nystagmus on attempted up gaze. [healio.com]

Wernicke-Korsakoff Syndrome

Nystagmus (usually horizontal) is the most common ocular finding. Prominent nystagmus in the abducting eye is characteristic of internuclear ophthalmoplegia. [clinicaladvisor.com]

Wernicke korsakoff syndrome Cause Thiamine / vitamin B1 deficiency Alcohol abuse Wernicke encephalopathy triad Reversible Confusion Ataxia Opthalmoplegia- nystagmus or diplopia [quizlet.com]

Predominantly affects gait Nystagmus: uncontrolled eye movement This triad of features is only seen in up to one-third of patients. [app.pulsenotes.com]

Acute Cerebellar Ataxia

A 54-year-old woman with adenocarcinoma of the lung and lymph node metastasis experienced nystagmus and cerebellar ataxia 2 weeks after initiating nivolumab therapy. [ncbi.nlm.nih.gov]

Horizontal nystagmus is present is approximately 50% of cases. [en.wikipedia.org]

The most common associated neurologic findings were nystagmus and dysmetria. [ncbi.nlm.nih.gov]

Alcoholic Cerebellar Degeneration

Most nystagmus has a fast phase and a slow phase (termed “jerk” nystagmus). By convention, the direction of the nystagmus is defined by the direction of the fast phase. [geekymedics.com]

Nystagmus - fast component to the side of the lesion and worse on looking to side of lesion. Hypotonia - decreased muscle tone. [medexam.net]

Inherited periodic ataxia, dysarthria, nystagmus and vertigo. [patient.info]

Syringomyelia and Syringobulbia

Arnold-Chiari malformation nystagmus nystagmus of skew eye movement recordings Statistics from Altmetric.com Arnold-Chiari malformation nystagmus nystagmus of skew eye movement [jnnp.bmj.com]

There is no rebound nystagmus -- he has a right-beating nystagmus that remains direction fixed on centering. [dizziness-and-balance.com]

Clinical manifestations of types I-III include TORTICOLLIS; opisthotonus; HEADACHE; VERTIGO; VOCAL CORD PARALYSIS; APNEA; NYSTAGMUS, CONGENITAL; swallowing difficulties; and [hon.ch]

Syringobulbia

Oscillopsia, nystagmus, and Horner syndrome are frequent manifestations of syringobulbia. [ncbi.nlm.nih.gov]

Weakness All patients Unilateral not uncommon Nystagmus Weakness Hyperreflexia Scoliosis 6 MRI Findings 7 Treatment Restore CSF pathways between cranial and spinal compartments [slideplayer.com]

Syringobulbia is characterized by pharyngeal and palatal weakness, dissociated trigeminal sensory loss, nystagmus, and hemiatrophy and weakness of tongue. [japi.org]

Spinocerebellar Ataxia Type 13

Spinocerebellar ataxia type 13 (SCA13) is a rare autosomal dominant disorder, which, like other types of SCA, is characterized by dysarthria, nystagmus, and ataxia of gait [en.wikipedia.org]

Signs and symptoms SCA13 is typified by early onset, mildly progressive cerebellar ataxia with accompanying dysarthria, mental retardation, and nystagmus. [ipfs.io]

Spinocerebellar ataxia 1 See the list below: Clinical features Onset in the fourth decade of life Gait ataxia, dysarthria, dysmetria, nystagmus, peripheral neuropathy, muscle [emedicine.com]

Arnold-Chiari Malformation

Eye movement recordings in two patients with Arnold-Chiari malfomation type 1 showed, in addition to downbeat and gaze evoked nystagmus, intermittent nystagmus of skew. [ncbi.nlm.nih.gov]

Examination showed horizontal-torsional jerk nystagmus in all positions of gaze. [ncbi.nlm.nih.gov]

Dizziness, vertigo, disturbance of hearing and nystagmus may develop. [patient.info]

Pelizaeus-Merzbacher Disease

[…] in two patients in whom the waveform of the nystagmus was not obvious on inspection. [ncbi.nlm.nih.gov]

Her psychosocial interactions were excellent and her nystagmus improved. [omicsonline.org]

In view of global developmental delay, central hypotonia and pendular nystagmus, the possibility of Pelizaeus-Merzbacher disease (PMD) was kept. [annalsofian.org]

Hereditary Nystagmus

See Caloric nystagmus, Irritative nystagmus, Paralytic nystagmus, Recovery nystagmus, Opticokinetic nystagmus, Seesaw nystagmus. nys·tag·mus ( nis-tag'mŭs ) Rhythmic oscillation [medical-dictionary.thefreedictionary.com]

Nystagmus EVOKED NYSTAGMUS Gaze evoked nystagmus (GEN) Symmetrical GEN Asymmetrical GEN Rebound nystagmus Head-shaking nystagmus (HSN) Caloric nystagmus Optokinetic Nystagmus [tchain.com]

Nystagmus Information The Nystagmus Network provides support for those with nystagmus, and the parents and teachers of children with nystagmus. [lowvision.org]

Serous Labyrinthitis

Edit this paragraph signs and symptoms, vertigo, nystagmus, nausea, vomiting, nystagmus horizontal rotation, the the nystagmus direction toward the sick side, toward the healthy [e.uuuwell.com]

nystagmus). [ebooksread.com]

This type of jerk nystagmus has been termed "optokinetic" nystagmus or "railway" nystagmus. The other major type of nystagmus is termed "pendular" nystagmus. [dartmouth.edu]

Suppurative Labyrinthitis

Defining nystagmus Nystagmus is the involuntary, rapid and repeated movement of the eyes. [bpac.org.nz]

Symptoms of purulent labyrinthitis include Severe vertigo and nystagmus Nausea and vomiting Tinnitus Varying degrees of hearing loss Pain and fever are common. [merckmanuals.com]

Inability to adduct affected eye on lateral gaze (abnormal CNIII); normal CN VI (able to abduct, but with coarse nystagmus) Indications MLF lesion on the side of the CNIII [quizlet.com]

Viral Labyrinthitis

[…] properties of the horizontal vestibulo-ocular reflex (h-VOR) in the acute stage of two common labyrinthine diseases that provoke severe attacks of vertigo with spontaneous nystagmus [ncbi.nlm.nih.gov]

On physical exam a horizontal nystagmus is observed. [medbullets.com]

History of a recent viral infection is common Presentation Symptoms acute onset of severe, contiguous vertigo nausea vomiting tinnitus hearing loss Physical exam horizontal nystagmus [medbullets.com]

Subclavian Steal Syndrome

No cases of spontaneous nystagmus were observed. The positional nystagmus could be an isolated finding, in VBI, even if there were no other neurological signs 11. [ncbi.nlm.nih.gov]

[…] report the case of a 56-year-old man who presented with arterial hypotension, lightheadedness, vomiting, a sense of tingling in his right arm, and a right-beating horizontal nystagmus [ncbi.nlm.nih.gov]

During ENG, no spontaneous nystagmus was found and, in the position of Rose 4, a positional vertical down-beating nystagmus was noted with the head turned left, middle and [ncbi.nlm.nih.gov]

Cogan Syndrome

Pendular nystagmus has equal phases in both directions. [pediatriceducation.org]

Convert to ICD-10-CM : 379.51 converts directly to: 2015/16 ICD-10-CM H55.01 Congenital nystagmus Approximate Synonyms Congenital nystagmus (eye condition) ICD-9-CM Volume [icd9data.com]

Gaze-Evoked Nystagmus Definition Gaze-evoked nystagmus is the result of a gaze-holding deficit. [clicktocurecancer.info]

Olivopontocerebellar Atrophy

There was no pathologic nystagmus or saccadic dysmetria. [ncbi.nlm.nih.gov]

[…] uptake deficiency on single photon emission computed tomography scans had poorer performances on three of the four subscores (static equilibrium, dynamic equilibrium and nystagmus [ncbi.nlm.nih.gov]

For the clinical rating, International Cooperative Ataxia Rating Scale (ICARS) was used and dysarthria, gaze evoked nystagmus, finger to nose, pronation-supination alternating [ncbi.nlm.nih.gov]

Labyrinthine Concussion

Slight nystagmus on fistula test is indicative of oval or round window fistulae while strong nystagmus can indicate superior semicircular canal dehiscence. [symptoma.com]

Nystagmus is typically horizontal or torsional and direction-fixed. [journals.lww.com]

Nystagmus and alteration in hearing are a prerequisite to label the condition as labyrinthine concussion. [symptoma.com]

Brain Stem Disorder

In the author's experience, these patients often exhibit rebound nystagmus, which is a variant of gaze-evoked nystagmus. [dizziness-and-balance.com]

Upbeat nystagmus may occur. Small vessel disease (diabetes, hypertension, hypercholesterolemia) is the usual cause. Pontine hyperintense lesions. [tchain.com]

Abstract Three siblings presented with a progressive neurological disorder beginning in the third decade of life and characterised by palatal myoclonus, nystagmus, bulbar [jnnp.bmj.com]

Machado-Joseph Disease

The frequency of nystagmus was calculated for the 3 groups. RESULTS: Nystagmus was present in 88% of the MJD patients. [ncbi.nlm.nih.gov]

In the five non-MJD patients standard caloric testing elicited nystagmus. The presence of caloric induced nystagmus made the irrigation of ice water unnecessary. [jnnp.bmj.com]

Electronystagmographic (ENG) abnormalities included bilateral gaze nystagmus, saccadic pursuit and failure of fixation suppression suggestive of cerebellar-brainstem pathology [ncbi.nlm.nih.gov]

Hereditary Cerebellar Degeneration

[…] the cases reported by Bouchard had a horizontal nystagmus and occasionally a more irregular vertical nystagmus. [collections.lib.utah.edu]

[…] positional down-beat nystagmus). [orpha.net]

Patients may also exhibit slow and slurred speech; nystagmus is also a feature commonly seen. [kenhub.com]