ESCRS - FP01.01 - LEVEL OF AGREEMENT OF INTRAOCULAR LENS POWER MEASUREMENTS BETWEEN A SWEPT-SOURCE OCT BIOMETER AND A PARTIAL COHERENCE INTERFEROMETER

LEVEL OF AGREEMENT OF INTRAOCULAR LENS POWER MEASUREMENTS BETWEEN A SWEPT-SOURCE OCT BIOMETER AND A PARTIAL COHERENCE INTERFEROMETER

Published 2025 - 29th ESCRS Winter Meeting

Reference: FP01.01 | Type: Free Paper | DOI: 10.82333/e88d-6b83

Authors: Eirini-Kanella Panagiotopoulou* 1 , Minas Bakirtzis 1 , Thomas Polychroniadis 1 , Christina Mitsi 1 , Ioannis Athanasiadis 1 , Tryfon Rotsos 1 , Ioannis Tsinopoulos 2 , Georgios Labiris 1

1Department of Ophthalmology,University Hospital of Alexandroupolis,Alexandroupolis,Greece, 22nd Department of Ophthalmology,School of Medicine, Aristotle University of Thessaloniki,Thessaloniki,Greece

Purpose

To evaluate the level of agreement of a swept-source optical coherence tomography biometer (Argos) and partial coherence interferometry (IOLMaster 500) in terms of biometry values and intraocular lens (IOL) power calculation.

Setting

Department of Ophthalmology, University Hospital of Alexandroupolis, Greece

Methods

Axial length (AL), anterior chamber depth (ACD), flat (K1), steep (K2), and mean (Km) keratometry values, along with astigmatism power, J0 and J45 vector components, white-to-white distance (WTW), and IOL power calculations for nine IOL models using four formulas, were compared in cataract patients. Refractive outcomes for eyes implanted with SN60WF and Panoptix IOLs were assessed three months postoperatively. The mean prediction error (mean error-ME) was calculated for each model and formula for these two IOLs.

Results

This study included 133 eyes (mean age: 66.0 ± 10.95 years). The Argos system measured significantly higher ACD and steeper K1, K2, and Km values compared to the IOLMaster, while no significant differences were found in AL, astigmatism power, WTW, or J0 and J45 vectors. All mean differences in IOL power calculations across IOL models were below the clinically significant threshold of 0.50 D, except for SN6ATx with Hoffer Q and Haigis, and Clareon with Haigis. For Panoptix and SN60WF, IOLMaster showed a more hyperopic ME than Argos with SRK/T, Holladay 1, and Hoffer Q, but without clinically significant differences.

Conclusion

Argos and IOLMaster 500 showed differences in ACD, keratometry values, and IOL power calculations. However, for most formulas, the differences in IOL power calculation and ME between the two devices were not clinically significant.