A 13-year-old girl was told by her parents to have had strabismus since she was 6-months-old. Her corrected visual acuity was 20/20 in the right eye and 20/63 in the left eye. Anterior segment and fundus examinations were normal. Cycloplegic refraction was +1,0 (+0.5*80) in the right and +3.75 (+1.0*110) in the left. She had a 20˚ leftward face turn. Tests showed that her left eye had limitation of abduction, retraction of the globe, narrowing of palpebral fissure, and upshoot on attempted adduction. The patient underwent recession of the left medial rectus muscle and lateral rectus muscle recession of 7.0 mm with Y-splitting. On postoperative first day and after one month and then six months, the patient was checked for follow-ups. In the follow-up after 6 months, head turn and upshoot were found to be eliminated.
Key words: Type I Duane's Retraction Syndrome; Upshoot; Head Turn, Surgical Approach.
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