Ptosis

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Related to droopy eyelid: lazy eye, myasthenia gravis

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.

References in periodicals archive ?
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Sufferers usually have distinctive facial features including droopy eyelids, outside corners of the eyes that point downwards, skin folds covering the inner corner of the eyes, a small jaw, and low-set ears.
Reconstructive procedures include treatment for baggy or droopy eyelids and eyebrows, scars, eyes that protrude (Graves' Disease), blocked tear ducts, tumors of the eyelid and orbit, artificial eye implants, broken bones around the eye, sunken eyes, congenital defects of the orbit, and facial paralysis.