Clinical study on botulinum toxin A injections for blepharospasm / 国际眼科杂志(Guoji Yanke Zazhi)

ABSTRACT

AlM:To observe the efficacy of using botulinum toxin A in the treatment of blepharospasm. METHODS: Totally 113 patients with blepharospasm were managed with a local injection of botulinum toxin A, and the therapeutic effect was evaluated. RESULTS:Fifty-nine cases ( 52. 2%) had a complete remission of symptoms, 49 patients ( 43. 4%) presented with obvious relieved spasm, 4 cases ( 3. 5%) were partially relieved and the 1 patient ( 0. 9%) remained unchanged. The total effective rate was 99. 1%. The time of beginning effect was 1-14d. The recover time was mostly in 14d. The average of therapeutic effect lasted 1-9mo. Adverse reactions such as mild palpebra dysraphism, palpebra ptosis and local subcutaneous blood stasis were found in 23 patients, and the symptoms disappeared in 2-4wk. CONCLUSlON:Botulinum toxin A can effectively control medium and severe blepharospasm by injecting a little dose on local muscle.