İnfantil Ezotropyalarda İç Rektus Kas Özelliklerinin Cerrahi Başarı ile İlişkisinin Değerlendirilmesi

Purpose: To investigate the relationship of surgical success with medial rectus insertion distance and muscle width in patients with\udinfantile esotropia who had undergone bilateral medial rectus recession.\udMaterial and Method: Sixty eyes of 30 patients who had undergone bilateral medial rectus (MR) recession surgery for infantile esotropia\udwere included in the study. In all eyes, both the distance between the nasal aspect of corneoscleral limbus and anterior edge of MR insertion\udand the width of medial rectus at the insertion site were measured. The relationship of both these values and the differences in the 2 eyes with\udthe surgical success was evaluated.\udResults: The mean age of the patients was 27.7±12.3 months (13-56 months), mean preoperative deviation was 46.17±10.88 PD, and the\udmean cycloplegic refraction was +1.16D. The mean distance of MR insertion was 5.09±0.48 mm and the width was 9.13±1.14 mm in all eyes.\udThe insertion distances showed a difference of 0.5 mm between the right and left eyes in 40% of the patients. Bilateral medial rectus recession\udof 6±0.2 mm was done after measuring from the insertion site of the muscle. All the patients were followed for 18.57±6.5 months. Surgical\udsuccess was achieved in 21 patients (70%), while 5 of the patients (16.7%) underwent a second surgery. There was no relation between surgical\udsuccess and patients’ gender, MR insertion distance or width. Also surgical success was independent from the difference of insertion distance\udand width between the two eyes of the patients.\udDiscussion: There are many different studies supporting MR recession surgery either from MR insertion site or limbus in infantile\udesotropia. This study showed that it is safe and successful to perform MR recession by measuring from MR insertion site. Besides, the\udfeatures of the muscles do not affect the postoperative results. (Turk J Ophthalmol 2013; 43: 424-6