blepharospasm(redirected from essential blepharospasm)
Also found in: Thesaurus, Medical, Encyclopedia.
Spasmodic winking caused by the involuntary contraction of an eyelid muscle.
(Pathology) spasm of the muscle of the eyelids, causing the eyes to shut tightly, either as a response to painful stimuli or occurring as a form of dystonia
[C19: from Greek blepharo(n) eyelid + spasm]