Horizontal syndrome nystagmus nystagmus pathologic. Medical search. Frequent questions

Congenital nystagmus (CN), also called infantile nystagmus, may be associated with afferent visual pathway abnormalities (sensory nystagmus) or with albinism, optic nerve hypoplasia or congenital cataracts. (medscape.com)

[ 1 ] Conversely, if the second corrective movement is slow, the nystagmus is termed pendular nystagmus and is commonly characterized with sinusoidal oscillations that are approximately of equal amplitude and velocity. (medscape.com)
LCA manifests itself in the first 6 months of life with significant visual loss and sensory, pendular nystagmus. (aao.org)

No visual problems, meningeal signs, clonus or pathologic reflexes were noted. (biomedcentral.com)
Babinski Reflex In this test, which is considered the most constant of the pathologic reflexes, the plantar surface of the foot is directly and firmly stroked from the heel to the metatarsophalangeal joints, testing both inner & outer borders of the sole. (legalsoftsolution.com)

Clinically, the characterization of nystagmus depends on a number of factors including: the degree of conjugacy, plane/s of oscillation, waveform, amplitude, frequency, direction/s of gaze, asymmetry and whether the nystagmus presents bilaterally or unilaterally. (medscape.com)
Many forms of acquired nystagmus may also be caused by disruptions of visual fixation, the vestibulo-ocular reflex and the mechanism that makes it possible to hold the gaze at eccentric eye positions. (medscape.com)
This study describes a patient with paraneoplastic cerebellar degeneration, who presented acute vestibular syndrome and then episodically developed horizontal gaze-evoked nystagmus and gait ataxia. (e-rvs.org)
There was no gaze-evoked nystagmus. (e-rvs.org)
However, examination performed on the 12th day from the symptom onset found small rightbeat spontaneous nystagmus and gaze-evoked nystagmus during eccentric lateral gaze. (e-rvs.org)
Examination found no spontaneous nystagmus with and without fixation, but small left-downbeat nystagmus during leftward gaze. (e-rvs.org)
During the next 2 months, she showed distinct horizontal gaze-evoked nystagmus, dysarthria, and marked gait ataxia. (e-rvs.org)
Neurologic examination showed a horizontal gaze-evoked nystagmus to the right without other neurologic signs or symptoms. (neurology.org)
The horizontal gaze nystagmus test is an eye test approved by the National Highway Traffic Safety Administration (hereinafter NHTSA) as a tool to detect clues of impairment in drivers. (daytondui.com)
When an officer asks you to follow his pen, he is performing the horizontal gaze nystagmus test. (daytondui.com)
Forkiotis, C.J. Optometric Exercise: The Scientific Basis for Alcohol Gaze Nystagmus. (daytondui.com)
Good, Gregory W. & Augsburger, Arol R. Use of Horizontal Gaze Nystagmus as a Part of Roadside Sobriety Testing. (daytondui.com)
A major weakness in relying on the horizontal gaze nystagmus test in the criminal justice arena is that there are multiple causes of nystagmus that have been observed. (daytondui.com)
Horizontal Gaze Nystagmus: Voodoo Science. (daytondui.com)
The horizontal gaze nystagmus test is not present in marijuana impairment cases. (daytondui.com)

Like X-linked Pelizaeus-Merzbacher disease (PMD, MIM: 312080), which is caused by mutations in the gene encoding proteolipid protein 1 ( PLP1 , MIM: 300401), one of the major proteins in the central nervous system (CNS) myelin, PMLD is characterized by impaired motor development resulting in nystagmus, dysarthria, progressive spasticity and ataxia. (prolekarniky.cz)

Nystagmus is defined as the involuntary, periodic rhythmic ocular oscillation of the eyes that can either be physiologic (may not affect vision) or pathologic. (medscape.com)
Clonus Migraine Epilepsy Pathologic nystagmus Physiologic nystagmus Psychogenic non-epileptic seizures Saccade Ocular flutter Venes, Donald (2009). (wikipedia.org)

Nystagmus may be congenital or acquired. (medscape.com)
Congenital muscular dystrophy-dystroglycanopathy with brain and eye anomalies (type A), which includes both the more severe Walker-Warburg syndrome (WWS) and the slightly less severe muscle-eye-brain disease (MEB), is a genetically heterogeneous autosomal recessive disorder with characteristic brain and eye malformations, profound mental retardation, congenital muscular dystrophy, and early death. (beds.ac.uk)
Duane syndrome (DS) is a rare, congenital eye movement disorder most commonly characterized by the inability of the eye to turn out. (bionity.com)
Other names for this condition include: Duane's Retraction Syndrome (or DR syndrome), Eye Retraction Syndrome, Retraction Syndrome, Congenital retraction syndrome and Stilling-Turk-Duane Syndrome. (bionity.com)

Opsoclonus consists of rapid, involuntary, multivectorial (horizontal and vertical), unpredictable, conjugate fast eye movements without inter-saccadic intervals. (wikipedia.org)
The nystagmus the officer is looking for is an involuntary motion. (daytondui.com)

Most individuals with PLP1 duplications present with classic Pelizaeus-Merzbacher disease, typified by nystagmus that begins in the first year of life, delayed motor and cognitive milestones, and ataxia. (medscape.com)

[ 1 ] Nystagmus typically includes two movements: a slow first movement of the eye away from the visual target followed by a second, corrective movement that brings the eye back to the visual target. (medscape.com)
He had dizziness, horizontal nystagmus which was aggravated by head movements. (biomedcentral.com)
First symptoms, nystagmus and poor control of head and trunk movements, occur during early infancy. (prolekarniky.cz)

and a sarcoidosis-like syndrome with mediastinal lymph nodes and central nervous system (CNS) involvement (ie, dementia, sensory and motor deficits, ophthalmoplegia, myoclonus, stroke and hypothalamic damage with dysautonomia, emotional impairment, endocrinopathy). (medscape.com)

Horizontal saccades and smooth pursuit were normal. (e-rvs.org)
The video head impulse tests revealed preserved vestibulo-ocular reflex gain but with small catch-up saccades for right horizontal canal ( Fig. 1B ). (e-rvs.org)
Horizontal saccades and smooth pursuit were normal, while upward saccades were slightly hypermetric ( Fig. 2A ). (e-rvs.org)

Examination on the 4th day from the vertigo onset found small horizontal nystagmus beating to left-down-counterclockwise direction in darkness ( Fig. 1A ), which increased just after horizontal head shaking. (e-rvs.org)
The acute manifestation of vertigo and imbalance in our patient made more likely a diagnosis of acute vestibular syndrome rather than degenerative or neoplastic etiologies. (e-rvs.org)

Severe clinical syndromes (sometimes referred to as the connatal forms of Pelizaeus-Merzbacher disease) are typically caused by missense and other small mutations that affect critical positions in PLP1, whereas the milder spastic paraplegia syndrome is caused by mutations that presumably affect less critical regions of the protein. (medscape.com)
1907: Whipple proposed the name of "intestinal lipodystrophy" for a new, distinctive clinical syndrome. (medscape.com)
BACKGROUND: This study aimed to describe the clinical features of patients with orbital apex syndrome (OAS) as a complication of herpes zoster ophthalmicus (HZO) and to identify factors associated with poor visual acuity outcomes. (bvsalud.org)
Thus, 'pseudoglioma' is not an acceptable clinical or pathologic diagnosis (Duke-Elder, 1958). (beds.ac.uk)

If the nystagmus has a slow initiating phase and a fast corrective phase it is termed jerk nystagmus. (medscape.com)
The officer is looking for a type of nystagmus wherein the eye moves slowly in one direction and then returns rapidly, sometimes referred to as a jerk or jerking nystagmus. (daytondui.com)

The autosomal recessive mutation hCx47M283T causes Pelizaeus-Merzbacher-like disease 1 (PMLD1), a progressive leukodystrophy characterized by hypomyelination, retarded motor development, nystagmus, and spasticity. (prolekarniky.cz)

[ 4 ] Notably, when the nystagmus appears unilateral, it is more often asymmetric rather than truly unilateral. (medscape.com)
Classic Saethre-Chotzen syndrome (SCS) is characterized by coronal synostosis (unilateral or bilateral), facial asymmetry (particularly in individuals with unicoronal synostosis), strabismus, ptosis, and characteristic appearance of the ear (small pinna with a prominent superior and/or inferior crus). (beds.ac.uk)

The disadvantages of epidural anaesthesia are that a few wom en com plain of dizziness or shivering, and that it m ay increase the length of the second stage and result in a rise in operative vaginal deliveries. (dnahelix.com)

Nystagmus is defined as the oscillation of the eyeball that occurs when there is a disturbance of the vestibular system or the oculomotor control of the eye. (daytondui.com)

A disorder affecting any of the three components involved in maintaining the steady positioning of the eyes (ie, visual fixation, the vestibulo-ocular reflex or the neural integrator) may result in nystagmus. (medscape.com)

Video-oculography showed right-down-clockwise beating spontaneous nystagmus without fixation and rightbeat head shaking nystagmus. (e-rvs.org)

Mutations that prevent any PLP1 from being made result in a syndrome (PLP1 null syndrome) that is usually milder than classic Pelizaeus-Merzbacher disease. (medscape.com)
The hallmark of the pathologic report was the marked infiltration by foamy macrophages of joints and aortic valves, and prominent deposits of fat within intestinal mucosa and mesenteric lymph nodes, which made Whipple consider this case an obscure disease of fat metabolism and propose the name intestinal lipodystrophy. (medscape.com)
1989). Those with a more severe phenotype characterized as Walker-Warburg syndrome often die within the first year of life, whereas those characterized as having muscle-eye-brain disease may rarely acquire the ability to walk and to speak a few words. (beds.ac.uk)
TOP OF PAGE Platysma Sign This is a pathologic reflex of the head indicating ipsilateral corticorspinal tract disease as seen in hemiplegia. (legalsoftsolution.com)
AIDS-like syndrome: AIDS-like disease (illness) (syndrome) ARC AIDS-related complex Pre-AIDS AIDS-related conditions Prodromal-AIDS 3. (cdc.gov)

We present a case of herpes zoster ophthalmicus (HZO) with a rare complication of orbital apex syndrome (OAS) manifesting as optic perineuritis with multiple cranial nerve palsies. (bvsalud.org)

During corrective surgery fibrous attachments have been found connecting the horizontal recti and the orbital walls and fibrosis of the lateral rectus has been confirmed by biopsy. (bionity.com)

Neurologic examination showed nystagmus in all directions and dysarthric speech (cerebellar) that further worsened to impaired speech restricted to one-word sentences. (neurology.org)

To understand the mechanisms by which nystagmus may occur, it is important to discuss the means by which the nervous system maintains steady position of the eyes. (medscape.com)
2007). Clubfoot may occur in isolation or as part of a syndrome (e.g., diastrophic dysplasia, 222600). (nih.gov)

The Snout Reflex This is a pathologic reflex of the head most frequently seen in bilateral corticopontine lesions and indicates an upper motor neuron lesion. (legalsoftsolution.com)
Kleist's Hooking Sign This is an upper extremity pathologic reflex performed by the examiner gently elevating the patient's fingers with his or her own fingers. (legalsoftsolution.com)
Klippel-Weil Sign This is an upper extremity pathologic reflex sign which is considered present when the flexed fingers of the patient's affected limb are quickly pried open or extended by the examiner and it results in flexion and adduction of the patient's thumb. (legalsoftsolution.com)
Gordon's Reflex This is a lower extremity pathologic reflex where dorsiflexion of the great toe or all the toes results when the calf muscles are firmly compressed by the examiner. (legalsoftsolution.com)
Oppenheim Sign This is a lower extremity pathologic reflex where the examiner applies heavy pressure with the index fingers and thumb or with the knuckles of the index and middle fingers along the anterior tibial surface on either side of the tibial crest, stroking from the tibial tubercle down to the ankle. (legalsoftsolution.com)

Booker, J.L. End-position nystagmus as an indicator of ethanol intoxication. (daytondui.com)

There is no cure for some kinds of eye movement disorders, such as most kinds of nystagmus. (medlineplus.gov)
Other physical disorders may not mimic specific mental syndromes but instead have an impact on mood and energy. (msdmanuals.com)

This view is supported by the earlier work of Hotchkiss et al [5] who reported on the autopsy findings of two patients with Duanes syndrome. (bionity.com)

According to NHTSA nystagmus would not be present due to marijuana and, as such, it was plain error to admit evidence of the HGN against the defendant accused of marijuana impairment. (daytondui.com)

Caffeine, nicotine and aspirin (alone or in combination with alcohol) can also lead to a nystagmus which mimics a nystagmus attributable to alcohol consumption. (daytondui.com)
Scientific literature also points to a person's circadian rhythms or biorhythms as having an affect on nystagmus readings as the body reacts differently to alcohol at different times in the day and even fatigue nystagmus can be found in an individual, and the list, according to critics, goes on. (daytondui.com)

Horizontal head shaking produced right-downbeat nystagmus. (e-rvs.org)
Video head impulse tests recorded slightly early acceleration for right horizontal canal ( Fig. 2B ). (e-rvs.org)

oscillations are usually horizontal in direction. (mcw.edu)

A person is usually unaware of the presence of a nystagmus and cannot control it. (daytondui.com)

A trial of intravenous imunoglobulin failed to produce the improvement of the syndrome. (e-rvs.org)

An individual diagnosed with Duane syndrome in the left eye. (bionity.com)

Anatomy18

Diseases37

Chemicals and Drugs2

Analytical, Diagnostic and Therapeutic Techniques and Equipment11

Psychiatry and Psychology7

Phenomena and Processes18

Infantile nystagmus1

Pendular nystagmus2

Reflexes2

Gaze15

Dysarthria1

Physiologic2

Congenital4

Involuntary2

Ataxia1

Movements3

Sensory1

Saccades3

Vertigo2

Clinical4

Jerk2

Autosomal1

Unilateral2

Dizziness1

Oscillation1

Ocular1

Fixation1

Disease5

Optic1

Corrective1

Cerebellar1

Occur2

Reflex5

Intoxication1

Disorders2

Autopsy1

Present1

Alcohol2

Head2

Direction1

Control1

Produce1

Left eye1