Original Article November 26, 2025 November 26, 2025

Agreement between ANTERION and IOLMaster700 in ocular biometric measurements in a Brazilian population

DOI: 10.37039/1982.8551.20250093

ABSTRACT

Objective:

To evaluate the agreement of biometric parameters measured by the ANTERION and IOLMaster700 devices in a Brazilian population, considering statistical differences and their clinical relevance.

Methods:

A retrospective comparative study included cataract patients who underwent biometric examination with ANTERION and IOLMaster700 between September and December 2023. The parameters evaluated were anterior keratometry, axial length, central corneal thickness, anterior chamber depth, white-to-white diameter, and lens thickness. Agreement and correlation were assessed using Bland-Altman and scatter plots.

Results:

A total of 26 eyes from 23 patients were analyzed. Mean differences were 0.22 D for K, 0.05 mm for axial length, 7.3 µm for central corneal thickness, 0.47 mm for anterior chamber depth, 0.2 mm for white-to-white diameter, and 0.04 mm for lens thickness (p < 0.001 for all). Intraclass correlation coefficients (ICC) indicated excellent agreement (keratometry: 0.993, axial length: 0.999, central corneal thickness: 0.987, anterior chamber depth: 0.810, white-to-white diameter: 0.950, lens thickness: 0.987). Despite statistical significance, Bland-Altman plots demonstrated clinically acceptable agreement for axial length, keratometry, central corneal thickness, and lens thickness, while anterior chamber depth and white-to-white diameter showed higher variability.

Conclusion:

ANTERION and IOLMaster700 exhibit excellent agreement. However, anterior chamber depth and white-to-white diameter variability suggest caution in phakic IOL sizing and anterior segment planning. These findings support their interchangeability with context-based clinical judgment.