 |
 |
Definition: 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.
Synonym(s): Gunn phenomenon, Gunn syndrome, jaw-winking phenomenon, jaw-working reflex, Marcus Gunn phenomenon, Marcus Gunn syndrome
Examples: glitazone, GI cocktail, etc.
Drugs.com provides accurate and independent information on more than 24,000 prescription drugs, over-the-counter medicines and natural products. This material is provided for educational purposes only and is not intended for medical advice, diagnosis or treatment.
Data sources include Micromedex™ (updated Apr 24th, 2013), Cerner Multum™ (updated Apr 19th, 2013), Wolters Kluwer™ (updated Apr 30th, 2013) and others. To view content sources and attributions, refer to our editorial policy.
Copyright © 2000-2013 Drugs.com. All rights reserved.
We comply with the HONcode standard for trustworthy health information.
Verify here
