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Opsoclonus myoclonus syndrome (OMS), also known as opsoclonus-myoclonus-ataxia (OMA), is a rare neurological disorder of unknown cause which appears to be the result of an autoimmune process involving the nervous system.
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 ...
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]
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 ]
Caillois argues that we can understand the complexity of games by referring to four play forms and two types of play (ludus and paidia): Agon, or competition. E.g. Chess is an almost purely agonistic game. In this form of play, the players have equal chances but the winner succeeds because of "a single quality (speed, endurance, strength ...
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]
The paramedian pontine reticular formation (PMPRF) is involved in coordinating horizontal conjugate eye movements and saccades. To do so, besides projecting to the ibsilateral abducens nucleus, the PMPRF projects fibers through the MLF to the contralateral oculomotor nucleus (specifically, those of its motor neurons that innervate the medial rectus muscle).
Some examples of entoptical effects include: Floaters depiction Purkinje tree depiction. Floaters or muscae volitantes are slowly drifting blobs of varying size, shape, and transparency, which are particularly noticeable when viewing a bright, featureless background (such as the sky) or a point source of diffuse light very close to the eye.