[Treatment with botulinum toxin in blepharospasm].

Blepharospasm is a cranial dystonia characterized by forceful spasms of the orbicularis oculi muscle which may lead to functional blindness in approximately two-thirds of patients. Botulinum toxin injections is a simple procedure, very effective and with little morbidity. It is considered as the treatment of choice for patients with disabling blepharospasm.