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Ataxia. Ataxia (from Greek α- [a negative prefix] + -τάξις [order] = "lack of order") is a neurological sign consisting of lack of voluntary coordination of muscle movements that can include gait abnormality, speech changes, and abnormalities in eye movements, that indicates dysfunction of parts of the nervous system that coordinate ...
Leber congenital amaurosis. Leber congenital amaurosis ( LCA) is a rare inherited eye disease that appears at birth or in the first few months of life. [ 2] It affects about 1 in 40,000 newborns. [ 1] LCA was first described by Theodor Leber in the 19th century. [ 3][ 4] It should not be confused with Leber's hereditary optic neuropathy, which ...
Episodic ataxia ( EA) is an autosomal dominant disorder characterized by sporadic bouts of ataxia (severe discoordination) with or without myokymia (continuous muscle movement). There are seven types recognized but the majority are due to two recognized entities. [ 1] Ataxia can be provoked by psychological stress or startle, or heavy exertion ...
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.
Nystagmus as seen in a case of ocular albinism. The cause of pathological nystagmus may be congenital, idiopathic, or secondary to a pre-existing neurological disorder.It also may be induced temporarily by disorientation (such as on roller coaster rides or when a person has been spinning in circles) or by some drugs (alcohol, lidocaine, and other central nervous system depressants, inhalant ...
Lifting weights can help you lose fat mass — including belly fat — and maintain or build muscle mass, which can be lost during weight loss. This can improve your body composition (muscle, bone ...
Chronic Kidney Disease (CKD) in dogs is a progressive, long-term condition in which the kidneys gradually lose their ability to function effectively. It is a common health concern that can affect ...
Horizontal optokinetic nystagmus. The optokinetic reflex ( OKR ), also referred to as the optokinetic response, or optokinetic nystagmus (OKN), is a compensatory reflex that supports visual image stabilization. [ 1] The purpose of OKR is to prevent image blur on the retina that would otherwise occur when an animal moves its head or navigates ...