The Change in Deviation Measurements for Partial Accomodative Strabismus After Refractive Surgery: Early Postoperative Evaluation

Abstract

Objectives:The aim of this study was to evaluate the postoperative change in the angle of deviation in patients with partially accommodative esotropia or exotropia who underwent keratorefractive surgery. Methods: The records of patients with partially accommodative esotropia or exotropia who underwent keratorefractive surgery (small incision lenticule extraction [SMILE], laser in situ keratomileusis [LASIK]) were retrospectively reviewed. Preoperative and postoperative third month uncorrected and best corrected visual acuity, the angle of deviation in prism diopters, and titmus stereoacuity measurements were compared. Any preoperative strabismus surgery was also recorded. Results: A total of 19 eyes of 11 patients with partially accommodative esodeviation or exodeviation who underwent keratorefractive surgery between January 2017 and June 2017 were included in the study. Eight patients had bilateral surgery and 3 patients had unilateral surgery. The mean age of the patients was 24.9±5.78 years. Eight patients (72%) were men and 3 (28%) were women. Four patients had esotropia (36%), 5 had exotropia (45%) and 2 (18%) had exophoria. Five patients (45%) underwent a SMILE procedure and 6 patients underwent femtosecond LASIK surgery. No complications occurred preoperatively or postoperatively. One patient (0.9%) had a history of strabismus surgery before the keratorefractive procedure. No significant difference was detected in the ocular alignment and angle of deviation before and after keratorefractive surgery at postoperative third month. Conclusion: Refractive surgery seems to be ineffective at providing orthophoria for patients with partially accommodative esodeviation or exodeviation.