What is eyelid myokymia?

Updated: Oct 08, 2019
  • Author: Byron L Lam, MD; Chief Editor: Edsel Ing, MD, MPH, FRCSC  more...
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Answer

Myokymia is characterized by spontaneous, fine fascicular contractions of muscle without muscular atrophy or weakness. Eyelid myokymia results from fascicular contractions of the orbicularis oculi muscle. Eyelid myokymia is typically unilateral, with the most common involvement being one of the lower eyelids. When multiple eyelids are involved, the fascicular contractions of each eyelid are independent of each other.

In most cases, eyelid myokymia is benign, self-limited, and not associated with any disease. Intervention is usually unnecessary. Rarely, eyelid myokymia may occur as a precursor of hemifacial spasm, blepharospasm, Meige syndrome, spastic-paretic facial contracture, and multiple sclerosis.


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