Non-adjustable surgery for acute acquired comitant esotropia under general anesthesia

Purpose: To investigate the surgical results of the non-adjustable suture technique under general anesthesia for the correction of acute acquired comitant esotropia. Study design: Retrospective case study. Methods: Patients with acute acquired comitant esotropia who underwent corrective surgery from September 2008 to June 2018 were included. Surgical treatment was conducted based on the measured maximum angle after occlusion for at least 1 h; all surgeries were performed using the non-adjustable suture technique under general anesthesia. Motor success was categorized into three groups: good, ortho; fair, 2 to 8 prism diopters (PD); and poor, over 8 PD. Sensory success was divided into two groups: good (no diplopia with binocular vision) and poor (no stereopsis with diplopia). Results: 40 patients (21 male and 19 female, 28.78 +/- 15.32 years old) were included. Preoperative esodeviation was 28.0 +/- 12.8 PD. Mean refractive error was - 2.5 +/- 2.5 D (spherical equivalent). After the occlusion of one eye, 14 patients (35%) showed an esodeviation increase of more than 5 PD. There were 70% good, 25% fair, and 5% poor outcomes regarding motor success. 96% of the patients demonstrated good sensory success. Conclusion: The non-adjustable correction based on the maximum angle after 1 h had a relatively excellent motor and sensory success rate.