J
“J” selections in the Glossary of Terms for
Anatomy, Physiology & Pathology of the Human Eye
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- jaw wink
- also known as Marcus-Gunn jaw-winking ptosis; a condition in which the upper eyelid will “jump” when chewing or talking; accompanied 35-60% of the time by amblyopia; due to a congenital misdirection of the fifth cranial nerve fibers into a branch of the third cranial nerve that supplies the levator muscle of the eyelid
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