Marcus Gunn jaw-winking syndrome

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A congenital condition characterized by drooping (ptosis) of one eyelid. On opening or moving the mouth, the droopy lid elevates momentarily, resembling a wink. It is believed to be due to an abnormal innervation of the levator muscle by the trigeminal nerve. R. Marcus Gunn (1850–1909), British ophthalmologist

Subjects: Medicine and Health.

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