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Spasmodic winking due to spasms of the orbicular muscle of the eyelid.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



contraction of the orbicular muscle of the eye, leading to the persistent spasmodic closing of the lids. Blepharospasm occurs with acute diseases of the eye, trauma to the eye, and sometimes with hysteria and traumatic neurosis. Treatment involves removing the cause which led to the disorder.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Application of Botulismus-toxin in patients with essential blepharospasm. MN Oftalmoloji 1998;5:138-140.
Long-term effect of botulinum toxin in the treatment of benign essential blepharospasm and hemifacial spasm.
Blepharospasm is a tonic spasm of the orbicularis oculi muscle which leads to intermittent or complete closure of the eyelids.1 Benign essential blepharospasm (BEB) is bilateral dystonia of orbicularis oculi muscles characterized by spasmodic involuntary eyelid closure in the absence of any other ocular or adnexal cause.23 It is not uncommon to see secondary blepharospasm which is due to an ocular or adnexal disease along with essential blepharospasm in the same patient.4BEB is more common in women (2-3 times) as compared to men and more so in people over 50 years of age.13 Post menopausal women with thyroid dysfunction and those using phenothiazines are more prone to BEB.4
Benign essential blepharospasm is usually misdiagnosed by the general practitioners and the patients are treated with partially effective or ineffective remedies like anxiolytic or sedative agents.
Facial dystonia essential blepharospasm and hemifacial spasm.
study of patients with benign essential blepharospasm. J
Long-term botulinum toxin treatment of benign essential blepharospasm hemifacial spasm and Meige syndrome.

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