Botulinum toxin treatment in patients up to 3 years of age who have esotropic Duane retraction syndrome.

Purpose: To report the results of botulinum toxin (BOTOX®, Allergan) type A (BTA) bilateral injection in the treatment of Duane retraction syndrome (DRS) type 1 in patients aged up to 3 years.

Methods: We studied the results of BTA bilateral injection in eight consecutive patients with DRS type 1 and esotropia in primary gaze. Average follow-up was 74 ± 71 months.