congenital ptosis
pathology
Quick Summary
Congenital ptosis is the drooping of an upper eyelid that is present from birth. This condition occurs when the muscle responsible for lifting the eyelid, the levator palpebrae superioris, is underdeveloped or absent. If left uncorrected, severe congenital ptosis can lead to permanent vision loss, a condition known as amblyopia. A less common cause of congenital ptosis is a birth defect affecting the third cranial nerve, which controls eyelid elevation. Treatment for persistent ptosis is typically surgical.1
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