Botulinum toxin injection for the management of acute traumatic superior oblique muscle palsy

Poster Details

First Author: M.Talebnejad IRAN

Co Author(s):                  

Abstract Details

Purpose:

To assess the effectiveness of botulinum toxin (BTA ) injection of the inferior oblique muscle for management of acute traumatic superior oblique muscle palsy .

Setting:

Poostchi Ophthalmology Research Center

Methods:

Ten patients with acute traumatic superior oblique muscle palsy of less than one month’s duration were treated by the injection of 10-20 units Dysport into the ipsilateral inferior oblique muscle without EMG guidance. The subjective torsion, vertical deviation and inferior oblique muscle overaction were measured before and after the procedure.

Results:

The mean age of patients were 25 years old (ranging for 16 to 35 years). The cause of palsy was traffic accident in all patients. The mean hypertropia in primary position decreased from 10.6? to 2? at 6 months after injection. The mean subjective torsion decreased from 5.4? to 1.9? and mean inferior oblique overaction decreased from +2.7 to +0.8.Eight (80%) patients had good results (free of binocular diplopia in primary position and reading position) after 6 months and 2 (20%) patients responded poorly and their bothersome symptoms was still present that eventually underwent strabismus surgery 6 months later.

Conclusions:

In addition to decreased need for further surgical intervention, botulinum toxin injection of the ipsilateral inferior oblique muscle in patients affected by acute traumatic superior oblique palsy of less than one month’s duration may be effective in reducing patients’ complaints such as diplopia in the recovery time. FINANCIAL DISCLOSURE?: No