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Nystagmus. Nystagmus is a condition of involuntary (or voluntary, in some cases) [1] eye movement. [2] People can be born with it but more commonly acquire it in infancy or later in life. In many cases it may result in reduced or limited vision. [3] In normal eyesight, while the head rotates about an axis, distant visual images are sustained by ...
Exterior of labyrinth of the inner ear. Benign paroxysmal positional vertigo ( BPPV) is a disorder arising from a problem in the inner ear. [ 3] Symptoms are repeated, brief periods of vertigo with movement, characterized by a spinning sensation upon changes in the position of the head. [ 1] This can occur with turning in bed or changing ...
Bruns nystagmus is an unusual type of bilateral nystagmus most commonly occurring in patients with cerebellopontine angle tumours.It is caused by the combination of slow, large amplitude nystagmus (gaze paretic nystagmus) when looking towards the side of the lesion, and rapid, small amplitude nystagmus (vestibular nystagmus) when looking away from the side of the lesion. [1]
Multiple sclerosis can cause a variety of symptoms: changes in sensation ( hypoesthesia ), muscle weakness, abnormal muscle spasms, or difficulty moving; difficulties with coordination and balance; problems in speech ( dysarthria) or swallowing ( dysphagia ), visual problems ( nystagmus, optic neuritis, phosphenes or diplopia ), fatigue and ...
0.032% ( world) Multiple sclerosis ( MS) is an autoimmune disease in which the insulating covers of nerve cells in the brain and spinal cord are damaged. [ 3] This damage disrupts the ability of parts of the nervous system to transmit signals, resulting in a range of signs and symptoms, including physical, mental, and sometimes psychiatric ...
Progressive supranuclear palsy ( PSP) is a late-onset neurodegenerative disease involving the gradual deterioration and death of specific volumes of the brain. [ 2][ 3] The condition leads to symptoms including loss of balance, slowing of movement, difficulty moving the eyes, and cognitive impairment. [ 2] PSP may be mistaken for other types of ...
Myth #1: Your brain stops growing at a certain age. Scientists used to think that the brain stopped developing after adolescence. But we now know that your brain can change and develop at any age ...
Gerstmann–Sträussler–Scheinker syndrome ( GSS) is an extremely rare, always fatal (due to it being caused by prions) neurodegenerative disease that affects patients from 20 to 60 years in age. It is exclusively heritable, and is found in only a few families all over the world. [ 1] It is, however, classified with the transmissible ...