essential blepharospasm
Also found in: Dictionary, Thesaurus, Encyclopedia.
essential blepharospasm
Blepharospasm of unknown cause. It may be so severe as to be debilitating. Surgery has helped some patients. Botulinum toxin A injected into the muscles that control the spasm has been of benefit. This treatment will need to be repeated after 2 to 3 months.
See also: blepharospasm
Medical Dictionary, © 2009 Farlex and Partners