Abstract
Purpose :
To investigate bilateral misalignment phenomenon in Sensory exotropia
Methods :
This was a retrospective chart-review study of patients in the senior author’s strabismus practice over a 34-year period. Patients with sensory exotropia were included if they had no history of previous strabismus surgery and underwent strabismus surgery under general anesthesia. Those with good-quality pre-op and intra-op photographs were included for measuring corneal light reflex positions.
Results :
166 underwent strabismus surgery under general anesthesia (mean age 42.4 [20.0 SD] years; 84% male [50.6% SD]). 22 had available preoperative and intraoperative clinical photos and were included for measurement. Of these 22 patients, mean logMAR visual acuity was -0.02 [0.09 SD] in their good eyes and 1.57 [1.02 SD] in their poor eyes, with mean exotropia of 50.2[18.5 SD] prism diopters. From the awake to asleep measurements, the corneal light reflex shifted an average of 10.5% of corneal width outward in the good eyes and shifted an average of 7.2% of corneal width inward in the poor eyes.
Conclusions :
Sensory exotropia appears to be a binocular misalignment phenomenon.
This abstract was presented at the 2023 ARVO Annual Meeting, held in New Orleans, LA, April 23-27, 2023.