The use of EMG feedback in the treatment of a severe case of blepharospasm.
In this case report, a 50-year-old female with a chronic blepharospasm (spasmodic winking) around both eyes was treated with 17 sessions of electromyographic (EMG) feedback. EMG level and spasm frequency were monitored during baseline, placebo, and feedback treatment sessions. There was a marked decrease in both EMG level and spasm frequency, which generalized to her everyday life. Improvement was maintained at 4-month follow-up.