ESCRS - PP22.14 - Comparison Of Three Swept-Source Optical Coherence Biometry Devices In Long And Short Eyes

Comparison Of Three Swept-Source Optical Coherence Biometry Devices In Long And Short Eyes

Published 2023 - 41st Congress of the ESCRS

Reference: PP22.14 | Type: Free paper | DOI: 10.82333/756f-kn34

Authors: Andreea Fisus* 1 , Manuel Ruiss 1 , Caroline Pilwachs 1 , Martin Kronschlaeger 1 , Nino Hirnschall 2 , Oliver Findl 1

1Ophthalmology,Vienna Institute for Research in Ocular Surgery, Hanusch Hospital,Vienna,Austria, 2Ophthalmology,Department of Ophthalmology and Optometry, Kepler University Hospital GmbH,Linz,Austria

Purpose

The aim of the study was to determine the agreement and the predicted error of measurement in short (<22.5mm) and long eyes (>25.5mm) using three swept-source optical coherence (OCT) biometry devices.

Setting

Vienna Institute for Research in Ocular Surgery, Hanusch Hospital, Vienna, Austria

Methods

42 eyes of 42 patients were included in the study. All patients were measured three times in a random fashion with three swept-source OCT devices (IOLMaster 700, Zeiss; Argos, Alcon; Anterion, Heildelberg Engineering). Patients were measured preoperatively and 8 weeks (+/-2 weeks) postoperatively. The postoperative examination also contained visual acuity, autorefraction and subjective refraction.  Each patient received the same type of lens (Clareon, Alcon).

Results

The mean age of the patients is 69 ± 9 years. The mean arithmetic difference in axial length between Argos and IOLMaster 700 was -0.012 ± 0.104 mm and between Argos and Anterion was 0.003 ± 0.148 mm.

Prediction error was defined as the postoperative spherical equivalent (SE) calculated at 8 weeks minus the predicted SE (using the Barret formula) and mean error (ME) was mean value of prediction error. The mean error was -0.15 ± 0.39 D for IOLMaster 700 and -0.16 ± 0.53 for Argos. The absolute mean error was 0.33 D for IOLMaster 700 and 0.39 D for Argos. In this analysis the postoperative data of 34 from the 42 patients were included.

Conclusions

A good correlation was found between IOLMaster 700 and Argos and Anterion and Argos respectively. The final analysis will be presented at the 41th ESCRS Conference.

 

This study was supported by an investigator-initiated study grant from Alcon (IIT#67098567)