Abstract
Purpose: :
To determine the outcome of single unilateral horizontal rectus recession surgery in patients with Duane retraction syndrome.
Methods: :
Retrospective review of 28 charts of patients with Duane syndrome who underwent unilateral medial rectus recession for esodeviations and lateral rectus recession for exodeviations. The criteria for evaluating surgical success included improvement of abnormal head position, reduction of eye deviation, and preservation or improvement of stereo acuity.
Results: :
Patients had an average recession of 6.1 mm and were followed up for an average of 4 years. Of the 28 patients treated with unilateral horizontal rectus muscle recession, 93% had a postoperative face turn of < 10º in primary position and 86% an ocular deviation of < 10Δ. 63% achieved an excellent outcome that was defined as a combination of stereo acuity of <100 seconds of arc, face turn <10°, and strabismus of <10Δ.
Conclusions: :
Unilateral single horizontal rectus muscle recession is a simple and effective procedure that improves or eliminates face turn, corrects strabismus in primary position of gaze, and maintains good stereo acuity in a majority of patients with Duane syndrome.
Keywords: clinical research methodology • esotropia and exotropia • strabismus