Marcus Gunn Jaw Wink Syndrome: Symptoms, Causes & Treatment
Jul 27, 2021· Marcus Gunn jaw-winking ptosis or jaw wink ptosis is a type of condition when the upper eyelid droops over the eye and is associated with synkinetic movements of the upper eyelid moving while the jaw is chewing. Synkinesis is a neurological symptom in which a voluntary muscle movement causes a simultaneous involuntary contraction of other muscles.