Consecutive exotropia (XT) is a manifest exotropia that develops either spontaneously or after surgical treatment in a patient that formerly had esotropia. The aim of this work was for assessment of the clinical characteristics of consecutive exotropia and evaluation of the results of surgery.
Methods: This prospective cohort study was carried out on 30 patients with established diagnosis of consecutive exotropia after surgery for esotropia with deviation angle >10 PD Who met with the inclusion criteria, aged from 3 years to 25 years. Follow up of patients was done in the postoperative period for 6 months.
Results: There were not statistically significant regarding preoperative angle, age of surgery for esotropia, limited adduction and different types of surgical procedure used. There was statically significant relation between period between surgery of ET & consecutive XT (P=0.003), post cyclorefraction (p<0.001), preoperative angle and each other periods p≤0.05 and pre- and post-operative periods regarding Improvement of adduction restriction.
Conclusions: Postoperative results showed that 20 patients had a successful outcome (66.7%.) with post-operative angle within 10 PD. Surgical management of consecutive XT by medial rectus (MR) advancement had success rate (20%), MR advancement and resection had success rate (30%),lateral rectus (LR) recession had success rate(45%) and LR recession with MR advancement had success rate (5%), surgical treatment of consecutive XT is successful in most of the patients with numerous surgical options performed on a single eye or both eyes in a single session.