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Ptosis
(redirected from ptotic)

   Also found in: Dictionary/thesaurus, Medical, Wikipedia 0.01 sec.
ptosis [′tō·səs]
(medicine)
Prolapse, abnormal depression, or falling down of an organ or part; applied especially to drooping of the upper eyelid, from paralysis of the third cranial nerve.

Ptosis 

drooping of the upper eyelid. It may be unilateral or bilateral, total or partial, or congenital or acquired. Congenital ptosis is caused by incomplete development or absence of the muscle that lifts the upper lid. The condition is treated by surgery.

Acquired ptosis is generally unilateral; it results from such diseases as neuritis of the oculomotor nerve and encephalitis, which lead to paresis or paralysis of the oculomotor nerve that innervates the muscle lifting the upper lid. The condition is treated by eliminating the underlying disease, by physiotherapy, and occasionally by surgery.



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For patients with excessively long lateral crura and for those with persistently ptotic tips despite more conservative maneuvers, lateral crural segment excisions may be performed.
These patients included 7 pediatric patients, 4 solitary kidneys, 2 horseshoe kidneys, and 1 ptotic kidney.
 
 
 
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