Stereopsis and Clinical Features of Esotropia Patients Accompanied by Congenital Ptosis

Abstract

Abstract Background To evaluate binocular function and clinical features in patients with esotropia (ET) accompanied by congenital ptosis. Methods Clinical records of 44 ET patients with congenital ptosis (ET-ptosis group) and 71 age-matched ET patients without ptosis (ET only group) who presented for eye examination between January 2016 and December 2021 were retrospectively reviewed. Best-corrected visual acuity (BCVA), magnitude of esodeviation (at a distance and near) and stereopsis at the first visit were reviewed. Stereopsis and other clinical features of the two groups were compared. Results The mean (± standard deviation) age of overall patients was 5.7 (± 1.9) years. There was no significant difference in the distribution of age, sex, spherical equivalent refractive errors, BCVA, or magnitude of esotropia (at distance or near) between the two groups (all p > 0.05). Furthermore, stereopsis at near and the number of patients with amblyopia did not differ significantly between the two groups (Titmus test, p = 0.73; Randot test, p = 0.49; number of amblyopia patients, n = 16 (36.4%) vs. n = 35 (49.3%), p = 0.39). Of these patients, 51 (44.3%) had amblyopia. The number of ptosis patients did not differ significantly between the amblyopia group and the no amblyopia group (p = 0.12). Conclusion In patients with ET and congenital ptosis, stereopsis and visual acuity were not different from those in ET only patients. The presence of co-existing ptosis might not have a further deleterious impact on binocular function in ET patients.