Your browser does not support javascript:   Search for gard hereSearch for news-and-events here.


Genetic and Rare Diseases Information Center (GARD)

Print friendly version

Marcus Gunn phenomenon

Other Names for this Disease
  • Familial Marcus Gunn phenomenon (subtype)
  • Jaw-winking
  • Marcus Gunn syndrome
  • Maxillopalpebral synkinesis
See Disclaimer regarding information on this site. Some links on this page may take you to organizations outside of the National Institutes of Health.


Newline Maker

How might Marcus Gunn phenomenon be treated?

Treatment of Marcus Gunn phenomenon is not always needed because the condition tends to grow less noticeable with age.[1] Associated eye problems, such as horizontal strabismus, amblyopia, vertical strabismus, and double elevator palsy typically need to be addressed in affected individuals before considering how to manage the condition itself.[2] These related eye problems may be corrected with eyeglasses, surgery, and/or medications.[1]

Surgery for Marcus Gunn phenomenon may be considered for ptosis and jaw winking that are considered cosmetically significant, or causing amblyopia. Depending on the degree of ptosis and severity of jaw winking, several surgical techniques have been proposed.[2] For mild Marcus Gunn phenomenon, management has included observation, levator muscle resection, and the Fasanella-Servat procedure.[2]

More detailed information about treatment of Marcus Gunn phenomenon is available on Medscape Reference's Web site and can be viewed here.
Last updated: 3/6/2013

  1. Marcus Gunn Phenomenon. Marcus Gunn Phenomenon. March 24, 2008; Accessed 3/6/2013.
  2. Demirci H, Frueh BR, Nelson CC. Marcus Gunn jaw-winking synkinesis: clinical features and management. Ophthalmology. July 2010; 117(7):1447-1452.