Purpose: To Assess the results of botulinum toxin injection on benign essential blepharospasm and
hemifacial spasm.
Methods: Prospective follow up study in the department of oculoplasty,National institute of
opthalmology & hospital, Dhaka. From is 1st november 2014 to 31st marsh 2016. Assess all the
patients with essential blepharospasm and hemifacial spasm attending in the department of
oculoplasty.
Results: 2 groups of patients of which 30 is essential blepharospasm and 30 is hemifacial spasm
assesed. Evaluation of spasm done before and after Botulinum toxin injection for both groups. Before
injection spasm score usually 3-4 in both groups. After injection 2 weeks, 1 months, 2 months
evaluation found that spasm down to 0-1, but they reappear after 3 months and need re -injections.
Onset of effect starts 2-15 days. Complications are also very less, such as ptosis, pain in rare cases.
For all parameters botulinum toxin is better in hemifacial spasm than essential blepharospasm.