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CANVAS—short for Cerebellar Ataxia, Neuropathy, and Vestibular Areflexia Syndrome—is a progressive neurological syndrome that disrupts three systems that normally work together to keep us upright, steady, and oriented: the cerebellum (one of whose roles is the coordination of
Introduction Bow Hunter’s Syndrome (BHS)—also called rotational vertebral artery syndrome—is a rare, treatable cause of dizziness, fainting, and other “posterior circulation” symptoms that appear only when the head is turned or tilted in certain directions. In BHS,
Top 10 Facts Download this one-page flier to help raise awareness about vestibular disorders. Your balance system lives inside your inner ear. The word “vestibular” refers to the tiny balance organs in your inner ear. They work
Unilateral Vestibular Hypofunction (UVH) is a condition in which one side of the vestibular system, located in the inner ear, does not function properly. The vestibular system detects head movement, which helps us maintain our
What is Superior Semi-Circular Canal Dehiscence? Vestibular and auditory symptoms and signs can result from a dehiscence (opening) in the bone overlying the superior semicircular canal of the inner ear. This clinical syndrome—superior semicircular canal
When Dizziness Affects the Mind Vestibular disorders are widely recognized for causing dizziness, vertigo, and imbalance. But what many people don’t realize is that these disorders can also significantly affect the brain—particularly in the areas
Downbeat nystagmus (DBN) is a distinctive ocular motor finding most commonly associated with cerebellar or brainstem dysfunction—particularly involving the flocculus, paraflocculus, or vestibulocerebellum. Patients typically report oscillopsia, imbalance, and unsteadiness that worsens with downgaze, head
Dizziness is Common Dizziness is a common problem that affects nearly 37 million individuals in the US each year. Approximately 2 million of these individuals initially seek care at an emergency department. Many conditions that
The Dizziness, Vertigo & Imbalance Patient Registry collects disease-specific natural history data about individuals with vestibular disorders, with the goal of improving the understanding of vestibular disorders and informing treatment development. Registry questionnaires were built
Join the Registry Download instructions for how to register and complete the registry questionnaires. Registry Login For Researchers The Dizziness, Vertigo and Imbalance Patient Registry is sponsored by the Vestibular Disorders Association (VeDA). Vestibular disorders
Qu'est-Ce Que Le Syndrome De La Troisième Fenêtre ? Le syndrome de la troisième fenêtre décrit un groupe de troubles de l'oreille interne résultant d'une anomalie de pression et/ou de liquide des structures de l'oreille
What is vergence dysfunction? Vergence dysfunction refers to a condition where there are difficulties or abnormalities in the coordinated movement of the eyes to maintain single binocular vision. Binocular vision involves the simultaneous use of