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Topic: Nystagmus



  
 Nystagmus - Wikipedia, the free encyclopedia
In medicine, the clinical importance of nystagmus is that it indicates that the patient's spatial sensory system perceives rotation and is rotating the eyes to adjust.
Congenital nystagmus is usually non-treatable, but several therapeutic approaches, such as contact lenses, drugs, surgery, and low vision rehabilitation can be used in order to improve visual function.
One can accurately think of nystagmus as the combination of a slow adjusting eye movement (slow phase) like would be seen with the vestibulo-ocular reflex, followed by a quick saccade (quick phase) when the eye has reached the limit of its rotation.
http://en.wikipedia.org/wiki/Nystagmus   (926 words)

  
 NYSTAGMUS
Upbeat nystagmus and the ventral tegmental pathway of the upward vestibulo-ocular reflex.
If the nystagmus does not follow these characteristics, it is likely not peripheral vestibular, or there may also be other problems superimposed with the oculomotor system or central pathways.
Nystagmus is defined as involuntary movement of the eyes.
http://www.tchain.com/otoneurology/practice/nystagmus.html   (3073 words)

  
 Nystagmus
Nystagmus patients often experience fluctuations in their vision.
Unlike nystagmus acquired from early in life, patients with late onset nystagmus usually notice movement in their vision related to the movement of their eyes.
Sensory nystagmus is related to vision loss and motor nystagmus is related to the control of muscle function.
http://www.lowvision.org/nystagmus.htm   (1614 words)

  
 Dr. Koop - Nystagmus- Health Encyclopedia and Reference
Nystagmus can be found in some families as an isolated problem, not associated with other conditions.
Some forms of nystagmus are associated with reduced vision, such as occurs in extreme near or farsighted people or in those with scars in the retina or optic nerve.
Diagnosis is made clinically based on the medical history and physical examination.
http://www.drkoop.com/encyclopedia/93/516.html   (365 words)

  
 eMedicine - Nystagmus, Acquired : Article by Christopher M Bardorf, MD, MS
This type of nystagmus can be accentuated by otolithic stimulation by placing the patient on their side where the intact side is down (eg, if the lesion is on the left, the nystagmus is accentuated when the patient is placed on his right side).
This condition may occur when the tone within the pathways of the posterior semicircular canals is relatively higher than the tone within the anterior semicircular canals, and it can occur from lesions of the ventral tegmental tract or the brachium conjunctivum, which carry optokinetic input from the anterior semicircular canals to the third nerve nuclei.
Extraocular muscle surgery for correction of nystagmus is based on surgically shifting the null zone into primary position.
http://www.emedicine.com/oph/topic339.htm   (4072 words)

  
 Understanding nystagmus
Nystagmus is not painful and does not lead to total blindness.
The two main aims of this national self-help group are to support all those affected by nystagmus and to encourage the search for a treatment and a cure.
The condition may also develop later in life when the term “acquired nystagmus” is used.
http://www.rnib.org.uk/xpedio/groups/public/documents/PublicWebsite/public_rnib003659.hcsp   (1886 words)

  
 Vol 16, #1 - Earring Auriculotherapy For Congenital Nystagmus - Eric Petterson, MD
Congenital nystagmus in this study was successfully ameliorated by the application of varying modalities involving auriculotherapy.
Auriculotherapy is a branch of acupuncture in which the various parts of the body, including the oculomotor muscles, have a point of influence on the external ear.
Current therapy for congenital nystagmus is divided into 2 categories: the 1st category consists of measures to reduce the nystagmus itself.
http://www.medicalacupuncture.org/aama_marf/journal/vol16_1/case3.html   (1789 words)

  
 Nystagmus
Nystagmus can be a normal physiological response or a result of a pathologic problem.
The condition, benign positional vertigo, produces vertigo and nystagmus when the head is moved in certain directions.
This can occur if there is a cataract at birth or a problem is some other part of the visual system.
http://www.lifesteps.com/gm/Atoz/ency/nystagmus.jsp   (940 words)

  
 Nystagmus.co.uk - Real Life Experiences
Teachers may even wish to find out more information about nystagmus and read about my own experiences at school, in order to make education more accessible to their pupils.
I thought I would write about some of my experiences and provide information for those who are interested in learning about nystagmus.
Parents may therefore find my information and experiences helpful and enable them to understand a child with nystagmus and to plan for the future.
http://www.nystagmus.co.uk   (655 words)

  
 Nystagmus: Overlooked Causes and Treatments
Though it does not appear to be standard medical practice to test nystagmus patients for nutritional deficiencies, based on the evidence this would seem like a highly logical consideration.
Though it does not seem to be well known, there is a significant body of medical research linking nystagmus to magnesium and/or thiamin deficiencies.
This is what spurred me to research the condition.
http://www.ctds.info/nystagmus.html   (1705 words)

  
 Diagnostic value of nystagmus: spontaneous and induced ocular oscillations -- Serra and Leigh 73 (6): 615 -- Journal of ...
gaze evoked nystagmus may be attributable to a peripheral process,
The commonest form of nystagmus encountered in clinical practice
examining the patient with nystagmus and interpreting common
http://jnnp.bmjjournals.com/cgi/content/full/73/6/615   (3008 words)

  
 nystagmus
Normally the eyes remain in the position of primary gaze, even when a person is not deliberatedly focusing on any visual target directly ahead, because of balanced input from the left-and-right vestibular systems, which are finely tuned to respond to any movement of the head relative to the body.
Disclaimer: My EM guidemaps reflect my personal approach to problem-solving/managing clinical cases in an ED setting and they should not be regarded as the standard of care.
(* note that this guidemap is very selective in its presentation of information on nystagmus, and that it does not deal with latent nystagmus or congenital nystagmus => this guidemap is primarily focused on providing basic problem-solving information on acquired nystagmus in adult patients and older children)
http://www.jeffmann.net/NeuroGuidemaps/nystagmus.html   (5006 words)

  
 American Nystagmus Network-About Nystagmus
These are often associated with oscillopsia (the experience of the world 'wiggling'), poor vision, and loss of balance.
ANN, Inc. Caveat: Though discussions on specific problems are permissible and expected, remember that no posting here shall constitute professional health care or medical advice, and you should never rely on any contribution to this, or any, Internet discussion forum on important medical or professional health care questions.
Those with very poor vision usually have associated sensory deficits responsible for the greater part of their vision loss.
http://www.nystagmus.org/aboutn.html   (900 words)

  
 Nystagmus - Learning to Control Involuntary Conditions using EEG Neurofeedback
This condition causes the sufferer's vision to be poor but can not be corrected with glasses.
Robert is the first person ever in the world to have had congenital nystagmus successfully treated
Nystagmus - Learning to Control Involuntary Conditions using EEG Neurofeedback
http://www.cobal.com/eeg/IX07NYST.htm   (65 words)

  
 NYSTAGMUS : Contact a Family - for families with disabled children: information on rare syndromes and disorders
It offers self help support and information for people with Nystagmus, their families and professionals.
This is an extract from The Contact a Family Directory which has information on hundreds of conditions affecting both children and adults.
Congenital nystagmus may occur, however, in association with a wide range of infantile visual disorders.
http://www.cafamily.org.uk/Direct/n36.html   (487 words)

  
 nystagmus - multiple sclerosis encyclopaedia
Nystagmus can also be caused by lesions in the cerebellum, the area of the brainstem where the vestibular cranial nerve arises or further along the vestibular pathways.
Apart from immunomodulating drugs and steroids, there are no treatments for nystagmus.
Nystagmus can be caused by a variety of underlying conditions, including multiple sclerosis of which it is quite a common symptom.
http://www.mult-sclerosis.org/nystagmus.html   (206 words)

  
 nystagmus
Nystagmus can occur benignly with no evidence of any significant medical condition.
Other causes of nystagmus include drug toxicity, notably some anti-seizure medications such as Dilantin® (phenytoin).
Visible, abnormal nystagmus may be caused by abnormality of any one of the three basic mechanisms that regulate position and movement of the eyes: fixation (focusing on and tracking objects), conjugate gaze (keeping the eyes parallel so that the images coincide), or vestibular mechanisms (the balance organs).
http://www.drhull.com/EncyMaster/N/nystagmus.html   (293 words)

  
 Nystagmus: Congenital Nystagmus
Many children with nystagmus have no other vision or brain problems.
However, nystagmus is often a symptom of other conditions such as albinism, aniridia, cataracts, cone dysfunction and many others.
Despite all the associated problems, many nystagmus sufferers are able to lead normal, independent lives.
http://homepage.ntlworld.com/shaun_d_smith/nyst/congentl.html   (161 words)

  
 Aniridia Network International - About aniridia - Nystagmus
This type may also be amenable to muscle surgery (essentially, a repositioning of muscles to take advantage of the point of least nystagmus, or position of relative rest).
It is believed that the brain is responsible for the perceptual adjustment.
Nystagmus is the involuntary, rhythmical, oscillations of one or both eyes, in any or all fields of gaze.
http://www.aniridia.org/conditions/nystagmus.html   (330 words)

  
 Eye Conditions > Nystagmus -- EyeMDLink.com
A complete discussion of nystagmus, which is a exceedingly complex subject, is beyond the scope of this site.
Nystagmus is the condition characterized by repetitive oscillations of the eyes.
Depending on the type of nystagmus, patient history and symptoms, and physical exam findings, an extensive medical evaluation may be required to fully evaluate the condition.
http://www.eyemdlink.com/Condition.asp?ConditionID=303   (346 words)

  
 USAEyes.org - Nystagmus and LASIK, IntraLASIK, PRK, LASEK, Epi-LASIK, CK, P-IOL, RLE, etc.
Refractive surgery is sometimes impossible for individuals with nystagmus, but not always.
Nystagmus is the rapid and jerky involuntary movement of the eye.
USAEyes.org - Nystagmus and LASIK, IntraLASIK, PRK, LASEK, Epi-LASIK, CK, P-IOL, RLE, etc.
http://www.usaeyes.org/faq/subjects/nystagmus.htm   (159 words)

  
 LaserMyEye :: Encyclopedia :: Nystagmus
Nystagmus is a contraindication for laser eye surgery.
An eye condition where the eyes have rapid, jerky eye movements or tremors occurring independently of normal eye movements.
Are we missing a good link on this topic?
http://www.lasermyeye.org/encyclopedia/nystagmus.html   (77 words)

  
 nystagmus
Upbeat is usually associated with drug overdose (barbiturates, phenothiazines or Dilantin).
This can be a very challenging and difficult area of eye movement disorder to deal with clinically.
Pathological nystagmus is usually associated with oscillopsia and is of usually associated with recent onset.
http://www.theberries.ns.ca/BOTW_archives/nystagmus.html   (451 words)

  
 Nystagmus hub
Nystagmus and Double Vision - My Search for Treatment!
Pendular Nystagmus in Patients With Peroxisomal Assembly Disorder - by Adriana A.
H.G.N. (Horizontal Gaze Nystagmus) - by Laine Means.
http://www.genomelink.org/nystagmus   (582 words)

  
 Open Directory - Health: Conditions and Diseases: Eye Disorders: Nystagmus
Nystagmus - Personal page, reviewing nystagmus as a symptom of deficiencies of magnesium and thiamin.
Top: Health: Conditions and Diseases: Eye Disorders: Nystagmus
Open Directory - Health: Conditions and Diseases: Eye Disorders: Nystagmus
http://dmoz.org/Health/Conditions_and_Diseases/Eye_Disorders/Nystagmus   (144 words)

  
 Nystagmus Network
Nystagmus is an eye condition characterised by rapid, jerky eye movements.
Nystagmus Network is a UK-based self-help group providing support for adults and children with nystagmus, their parents and teachers and fostering research into the condition.
It is a symptom which should always be investigated by a specialist as it can be a result of other disorders.
http://www.btinternet.com/~lynest/nystag01.htm   (57 words)

  
 The MSDS HyperGlossary: Nystagmus
Nystagmus can be caused by tumors or drugs (such as barbiturates).
It can also be a congenital condition (present at birth).
Nystagmus is a rapid, involuntary, motion of the eyeball (side to side, up and down, rotating and/or oscillating).
http://www.ilpi.com/msds/ref/nystagmus.html   (198 words)

  
 physiological nystagmus - definition of physiological nystagmus in Encyclopedia
physiological nystagmus - definition of physiological nystagmus in Encyclopedia
Searchword not found in the selected dictionary, but you can try the following:
Embed a dictionary search in your own web page
http://encyclopedia.laborlawtalk.com/physiological_nystagmus   (50 words)

  
 Eye Problems in Cats
members of the oriental breeds have a congenital problem with nystagmus,
I have to admit that I am not familiar with the breed Showshoe.
http://www.vetinfo.com/cateye.html   (8182 words)

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