Marcus Gunn jaw-winking syndrome
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

Medical dictionary. 2011.

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  • Marcus Gunn jaw-winking syndrome — 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… …   The new mediacal dictionary

  • Marcus Gunn phenomenon — For the pupillary defect, see Marcus Gunn pupil. Marcus Gunn phenomenon Classification and external resources Nerves of the orbit, and the ciliary ganglion. Side view. (Trigeminal nerve and oculomotor nerve both …   Wikipedia

  • Marcus Gunn pupil — Classification and external resources The left optic nerve and the optic tracts. A Marcus Gunn pupil indicates an afferent defect, usually at the level of the retina or optic nerve. Moving a bright light from the unaffected eye to the affect …   Wikipedia

  • syndrome — The aggregate of symptoms and signs associated with any morbid process, and constituting together the picture of the disease. SEE ALSO: disease. [G. s., a running together, tumultuous concourse; (in med.) a concurrence of symptoms, fr. syn,… …   Medical dictionary

  • Gunn syndrome — unilateral ptosis of the eyelid, with the association of movements of the affected upper eyelid with those of the jaw; called also Gunn phenomenon, Marcus Gunn s. or phenomenon, and jaw winking s. or phenomenon …   Medical dictionary

  • Ptosis (eyelid) — For other uses, see Ptosis (disambiguation). Not to be confused with proptosis. Ptosis of the eyelids Classification and external resources Ptosis of the left eyelid (unilateral ptosis) in an unidentified male from the 19th century …   Wikipedia

  • phenomenon — 1. A symptom; an occurrence of any sort, whether ordinary or extraordinary, in relation to a disease. 2. Any unusual fact or occurrence. [G. phainomenon, fr. phaino, to cause to appear] adhesion p. a p. manifested by the adherence of antigen… …   Medical dictionary

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