KMID : 1036520150050010023
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Clinical Neuro-Ophthalmology 2015 Volume.5 No. 1 p.23 ~ p.26
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Anisocoria
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Park Jae-Han
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Abstract
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Anisocoria is a condition characterized by an unequal size of the pupils. Pupillary size and movement are controlled by the autonomic nervous system. The parasympathetic system constricts the iris through sphincter pupillae muscle contraction, while sympathetic system dilate the iris through dilator pupillae muscle contraction. In the normal state, these constriction and dilation, are identical between the two eyes. Asymmetry in the pupillomotor neural output or their muscular forces results in impaired pupillary movement on one side and unequal pupil size between the two eyes.
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KEYWORD
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Anisocoria, Parasympathetic system, Sympathetic system
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