Marcus Gunn phenomenon
Other Names for this Disease
- Familial Marcus Gunn phenomenon (subtype)
- Jaw-winking syndrome
- Mandibulo-palpebral synkinesis - ptosis
- Marcus Gunn syndrome
 The wink phenomenon may be elicited by opening the mouth, thrusting the jaw to the side, jaw protrusion, chewing, smiling, or sucking. It is usually present at birth and may occur with other eye abnormalities (such as strabismus) or vision problems.[ Although it is usually unilateral, it can affect both eyes in rare cases. The exact cause is not known. Marcus Gunn phenomenon is generally sporadic, but familial cases with autosomal dominant inheritance have been reported. Treatment is not always needed but may include surgery in more severe cases.Marcus Gunn phenomenon is a rare condition characterized by movement of the upper eyelid in a rapid rising motion (a "wink") each time the jaw moves.
Last updated: 3/6/2013
- Marcus Gunn Phenomenon. National Organization for Rare Disorders (NORD). 2003; http://www.rarediseases.org/search/rdbdetail_abstract.html?disname=Marcus%20Gunn%20Phenomenon. Accessed 7/1/2009.
- Sean M Blaydon. Marcus Gunn Jaw-winking Syndrome. Medscape Reference. November 16, 2011; http://emedicine.medscape.com/article/1213228-overview. Accessed 3/5/2013.
- Marcus-Gunn syndrome. Orphanet. April 2007; http://www.orpha.net/consor/cgi-bin/OC_Exp.php?lng=EN&Expert=91412. Accessed 3/4/2013.
- Marcus Gunn Phenomenon. Marcus Gunn Phenomenon. March 24, 2008; http://www.rarediseases.org/rare-disease-information/rare-diseases/byID/833/viewAbstract. Accessed 3/6/2013.
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