Results of Surgery in Patients with type 1 Duane’s Retraction Syndrome

Purpose: To assess the results of surgery techniques used in Duane’s retraction syndrome (DRS) type 1. Material and Method: 194 DRS cases followed in the department of strabismus were retrospectively investigated. We assessed 58 cases operated for esotropic DRS type 1 in terms of pre- and post-operative deviations in primary position, abnormal head posture (AHP), abduction deficiency, globe retraction, and up-down shoot. The cases were divided into 3 groups according to the surgical technique applied. The mean follow-up period was 22.4±4.6 (1-13 years) months. Results: The cases in group 1 had undergone uni- or bilateral medial rectus (MR) recession, and the postoperative 1stmonth improvement rates for distance deviation, near deviation and AHP were 68.6%, 73.9% and 50%, respectively. These rates were 69.3%, 64.7% and 57.1%, respectively in group 2 which consisted of eyes that had undergone vertical rectus muscle transposition (VRT) surgery. In group 3, in which we had performed Y-split (with or without LR/MR recession) surgery, the improvement rates for distance and near deviation were 63.6% and 63.9%, and 50% was determined for AHP. The improvement in globe retraction was 60% in group 1 and 66.6% in group 3. Discussion: Medial rectus muscle recession was more effective for correction of deviation and AHP in cases of DRS type 1. VRT was found to be more effective surgical option in abduction deficiency. Y-split surgery has an important place in eliminating globe retraction and up/down shoot. (Turk J Ophthalmol 2011; 41: 156-63