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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 ...
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 ...
Positional alcohol nystagmus. Positional alcohol nystagmus (PAN) is nystagmus (visible jerkiness in eye movement) produced when the head is placed in a sideways position. PAN occurs when the specific gravity of the membrane space of the semicircular canals in the ear differs from the specific gravity of the fluid in the canals because of the ...
Friedreich's ataxia. Friedreich's ataxia ( FRDA or FA) is an autosomal-recessive genetic disease that causes difficulty walking, a loss of coordination in the arms and legs, and impaired speech that worsens over time. Symptoms generally start between 5 and 20 years of age.
Vestibulocerebellar syndrome. Vestibulocerebellar syndrome, also known as vestibulocerebellar ataxia, is a progressive neurological disorder that causes a variety of medical problems. Initially symptoms present as periodic attacks of abnormal eye movements but may intensify to longer-lasting motor incapacity. The disorder has been localized to ...
Noonan syndrome ( NS) is a genetic disorder that may present with mildly unusual facial features, short height, congenital heart disease, bleeding problems, and skeletal malformations. [ 1] Facial features include widely spaced eyes, light-colored eyes, low-set ears, a short neck, and a small lower jaw. [ 1]
Over 3,000 people with cholera received ORT in this way. The mortality rate was 3.6 percent among those given ORT, compared with 30 percent in those given IV fluid therapy. [43] [45] After Bangladesh won independence, there was a wide campaign to promote the use of saline in the treatment of diarrhea. In 1980, the World Health Organization ...
brain injury. physical inactivity. depression. social isolation. hearing loss. lower levels of education. The Commission’s new report added high cholesterol after the age of 40 and vision loss ...