[Therapy of Benign Essential Blepharospasm with Botulinum Toxin].

Blepharospasm is a focal dystonia and a rare disease of the brain that causes involuntary spasms of the muscles responsible for eyelid closure. The diagnosis is made clinically and in unclear cases on the basis of results of electrophysiological tests. Therapy of choice consists of local injections with botulinum toxin that have to be repeated on a regular basis.