Comparison of biometric and refractive changes in intermittent exotropia with and without overminus lens therapy

• DOI: 10.1136/bjo-2022-321509
• Publication Date: 2022-07-06T17:24:36Z
• Authors: Jit B Ale Magar; Shaheen P Shah; Shuan Dai
• Keywords: Intermittent exotropia; Subjective refraction

Background Overminus lens is an effective non-surgical treatment of intermittent exotropia (IXT). Whether this causes development myopia recently debated. This study evaluated ocular biometric changes in IXT children treated with and without overminus lens. Methods Children were randomly assigned to control groups. Cycloplegic refraction, axial length other parameters (keratometry, anterior chamber depth thickness) for up 30 months compared between the Axial corneal curvature (AL/CR) ratio was examined as indicator progression. Changes prior after also assessed a subgroup. Results Mean age total 84 subjects (58% women) 7.2 years (range 4–15 years). Baseline refractive 39 45 not significantly different. Mean±SD change refraction −0.34±0.45D controls −0.41±0.66D group (p=0.527). AL increased by 0.29±0.20 millimetre (mm) 0.28±0.23 mm (p=0.766). In subgroup, before therapy different (p>0.05). AL/CR maintained from baseline follow-up visit (p=0.298) both Conclusion No significant differences biometry or found two groups therapy. We conclude that children, accounting risk factors, does affect normal growths.