Marcus Gunn syndrome

jaw-·wink·ing syn·drome

an increase in the width of the palpebral fissures during chewing, sometimes with a rhythmic elevation of the upper lid when the mouth is open and with ptosis when the mouth is closed.
Farlex Partner Medical Dictionary © Farlex 2012

Marcus Gunn syndrome

(1) Marcus Gunn jaw-winking phenomenon.
(2) Marcus Gunn pupillary phenomenon; Gunn pupil sign.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.


Robert Marcus, English ophthalmologist, 1850-1909.
Gunn dots - minute, highly glistening, white or yellowish specks usually seen in the posterior part of the fundus.
Gunn phenomenon - an increase in the width of the eyelids during chewing. Synonym(s): Gunn syndrome; jaw-winking syndrome; Marcus Gunn syndrome
Gunn pupil - Synonym(s): Marcus Gunn pupil
Gunn sign - compression of the underlying vein at arteriovenous crossings seen ophthalmoscopically in arteriolar sclerosis. Synonym(s): Marcus Gunn sign
Gunn syndrome - Synonym(s): Gunn phenomenon
Marcus Gunn pupil - relative afferent pupillary defect. Synonym(s): Gunn pupil
Marcus Gunn sign - Synonym(s): Gunn sign
Marcus Gunn syndrome - Synonym(s): Gunn phenomenon
Medical Eponyms © Farlex 2012
Marcus Gunn phenomenon
jaw-winking syndrome,
, Marcus Gunn syndrome (mahr'kŭs gŭn fĕ-nom'ĕ-non, sin'drōm) [MIM*154600]
Synonym(s): jaw-winking syndrome.
Medical Dictionary for the Dental Professions © Farlex 2012