jerky nystagmus

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• Nystagmus — Rapid rhythmic repetitious involuntary (unwilled) eye movements. Nystagmus can be horizontal, vertical or rotary. * * * Involuntary rhythmic oscillation of the eyeballs, either pendular or with a slow and fast component. [G. nystagmos, a nodding …   Medical dictionary

• jerk nystagmus — jerky nystagmus nystagmus consisting of slow movement in one direction followed by a rapid return movement in the opposite direction; called also resilient or rhythmical n …   Medical dictionary

• congenital nystagmus — congenital hereditary nystagmus nystagmus usually present at birth; it is most often horizontal and pendular, but occasionally jerky and pendular. It may be caused by or associated with optic atrophy, coloboma, albinism, bilateral macular lesions …   Medical dictionary

• movement — 1. The act of motion; said of the entire body or of one or more of its members or parts. 2. SYN: stool. 3. SYN: defecation. [L. moveo, pp. motus, to move] active m. 1. m. effected by the organism itself, unaided by external influences. 2. in… …   Medical dictionary

• Cross syndrome — Classification and external resources ICD 10 E70.3 (ILDS E70.380) OMIM 257800 Cross–McKusick–Breen syndrome (also known as Cross syndrome, Hypopigmentation and microphthalmia, and Oculocerebral hypopigmentation syndrome ) is an extremely rare… …   Wikipedia

• law — 1. A principle or rule. 2. A statement of fact detailing a sequence or relation of phenomena that is invariable under given conditions. SEE ALSO: principle, rule, theorem. [A.S. lagu] Alexander l. states that a jerky nystagmus becomes worse when… …   Medical dictionary

• nervous system disease — Introduction       any of the diseases or disorders that affect the functioning of the human nervous system (nervous system, human). Everything that humans sense, consider, and effect and all the unlearned reflexes of the body depend on the… …   Universalium

• ear, human — ▪ anatomy Introduction       organ of hearing and equilibrium that detects and analyzes noises by transduction (or the conversion of sound waves into electrochemical impulses) and maintains the sense of balance (equilibrium).  The human ear, like …   Universalium

• mechanoreception — See mechanoreceptor. * * * Ability to detect and respond to mechanical stimuli in one s environment. A slight deformation of a mechanoreceptive neuron causes an electric charge at its surface, activating a response. Mechanoreceptors in pain spots …   Universalium

• Ménière's disease — Classification and external resources Inner ear ICD 10 H …   Wikipedia

• oscillopsia —    Also known as bouncing vision. The term oscil lopsia comes from the Latin verb oscillare (to rock, to swing) and the Greek verb opsis (seeing). It is used to denote a visual distortion in which the extracorporeal environment as a whole appears …   Dictionary of Hallucinations