Agreement between IOLMaster 700 and Pentacam AXL for IOL power measurement in patients with high myopia

Abstract

Purpose: The anterior segment in individuals with high myopia has different features compared to those without myopia. IOLMaster 700 and Oculus Pentacam AXL are two accurate optical biometers. Both devices measure the cornea differently and thus yield different results when measuring intraocular lens (IOL) power. The purpose of this study is to assess the agreement of the IOL power calculation between IOLMaster 700 and Oculus Pentacam AXL in patients with high myopia. Methods: A prospective, analytical cross-sectional study was conducted to assess the agreement between the IOL power calculation with IOLMaster 700 and Oculus Pentacam AXL. In this study, 44 eyes were examined using Oculus Pentacam AXL and IOLMaster 700, and IOL power was calculated using the Barret Universal II formula and the AMO Sensar AR40E. The Bland–Altman plot was used to evaluate the agreement between the two devices. Results: Based on the IOLMaster 700 examination, 44 eyes with high myopia had axial lengths ranging from 26.05 to 34.02 mm. The mean IOL power was 8.26 ± 4.755 and 8.58 ± 4.776 based on IOLMaster 700 and Oculus Pentacam AXL, respectively. The Bland–Altman plot revealed good agreement between the two devices, with a mean difference of −0.3182 in the IOL power calculation and a 95% LoA of 0.88099–0.24462 with a 95% confidence interval. Conclusion: Both devices showed good agreement in the IOL power calculation in patients with high myopia.

Keywords

• high myopia
• iol power
• iolmaster 700
• oculus pentacam axl