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Opsoclonus refers to uncontrolled, irregular, and nonrhythmic eye movement.Opsoclonus consists of rapid, involuntary, multivectorial (horizontal and vertical), unpredictable, conjugate fast eye movements without inter-saccadic intervals. [1]
The most important symptoms for diagnosing SS are tremor, extreme aggressiveness, akathisia, or clonus (spontaneous, inducible and ocular). [10] Physical examination of the patient should include assessment of deep tendon reflexes and muscle rigidity, the dryness of the mucosa of the mouth , the size and reactivity of the pupils, the intensity ...
Clonus is a set of involuntary and rhythmic muscular contractions and relaxations. Clonus is a sign of certain neurological conditions, particularly associated with upper motor neuron lesions involving descending motor pathways, and in many cases is accompanied by spasticity (another form of hyperexcitability). [ 1 ]
The human eye is a sensory organ in the visual system that reacts to visible light allowing eyesight.Other functions include maintaining the circadian rhythm, and keeping balance.
Beyond its literal sense concerning the visual system, the term scotoma is also used metaphorically in several fields, including neurology, neuropsychology, psychology, philosophy, and politics. The common theme of all the figurative senses is of a gap not in visual function but in the mind's perception, cognition, or world view.
The oculocardiac reflex, also known as Aschner phenomenon, Aschner reflex, or Aschner–Dagnini reflex, is a decrease in pulse rate associated with traction applied to extraocular muscles and/or compression of the eyeball. [1]
By definition of an idiopathic epilepsy, all tests other than the EEG are normal. However, high resolution brain magnetic resonance imaging is probably mandatory because of the high incidence of symptomatic occipital epilepsies with the same clinico-EEG manifestations. [citation needed]
Myoclonus is a brief, involuntary, irregular (lacking rhythm) twitching of a muscle, a joint, or a group of muscles, different from clonus, which is rhythmic or regular. Myoclonus (myo-"muscle", clonus "spasm") describes a medical sign and, generally, is not a diagnosis of a disease.