Profile of orthoptic clinic patients at a tertiary care Government Medical University in North India: A 6-year review

Abstract

Aim: This study aims to study clinicodemographic profile of patients presenting to orthoptic clinic over the previous 6 years. Methods: Records of all new patients registered at the orthoptic clinic over 6 years' (January 1, 2014, to December 31 2019) were retrieved. Details of patient demographics, clinical presentation and management were studied in this hospital-based descriptive observational study after obtaining institutional ethical clearance. Records that were incomplete and those of patients with a history of strabismus surgery at presentation were excluded from analysis. Exact binomial confidence intervals (CIs) were calculated for the estimates of proportion. The results were reported as percentage (95% CIs). Descriptive statistics were used for subtypes of strabismus and amblyopia. Results: Out of 1548 patients, 896 were male (57.88%) and 652 (42.12%) were female. Mean age at presentation was 18.53 ± 10.41 years. Comitant strabismus was seen in 1083 (69.96%) and incomitant in 203 (13.11%). Among comitant deviations exotropia (XT) was commonest (n = 511, 47.18%), 6th nerve palsy (34%) was the most common cause among incomitant deviations, Duane retraction syndrome (DRS) constituted 24% of restrictive strabismus and amblyopia was present in 16.71% (n = 331) of patients. The left eye (LE) was more frequently involved in unilateral amblyopia (P < 0.0001). Conclusions: In our study, male to female ratio was 1.37. XT, 6th Nerve palsy, and DRS were the commonest types of comitant, paralytic and restrictive deviations respectively. Prevalence and severity of different types of amblyopia have also been described.

Keywords

• amblyopia
• clinical profile of strabismus
• comitant strabismus
• incomitant strabismus