RT Journal Article
T1 Agreement and clinical comparison between a new swept-source optical coherence tomography-based optical biometer and an optical low-coherence reflectometry biometer
A1 Arriola Villalobos, Pedro
A1 Almendral Gómez, Jaime
A1 Garzón Jiménez, Nuria
A1 Ruiz Medrano, J
A1 Fernandez Perez, C
A1 Martínez De La Casa Fernández-Borrella, José María
A1 Díaz Valle, David
AB PurposeTo compare measurements taken using a swept-source optical coherence tomography-based optical biometer (IOLmaster 700) and an optical low-coherence reflectometry biometer (Lenstar 900), and to determine the clinical impacts of differences in their measurements on intraocular lens (IOL) power predictions.MethodsEighty eyes of 80 patients scheduled to undergo cataract surgery were examined with both biometers. The measurements made using each device were axial length (AL), central corneal thickness (CCT), aqueous depth (AQD), lens thickness (LT), mean keratometry (MK), white-to-white distance (WTW), and pupil diameter (PD). Holladay 2 and SRK/T formulas were used to calculate IOL power. Differences in measurement between the two biometers were determined using the paired t-test. Agreement was assessed through intraclass correlation coefficients (ICC) and Bland–Altman plots.ResultsMean patient age was 76.3±6.8 years (range 59–89). Using the Lenstar, AL and PD could not be measured in 12.5 and 5.25% of eyes, respectively, while IOLMaster 700 took all measurements in all eyes. The variables CCT, AQD, LT, and MK varied significantly between the two biometers. According to ICCs, correlation between measurements made with both devices was excellent except for WTW and PD. Using the SRK/T formula, IOL power prediction based on the data from the two devices were statistically different, but differences were not clinically significant.ConclusionsNo clinically relevant differences were detected between the biometers in terms of their measurements and IOL power predictions. Using the IOLMaster 700, it was easier to obtain biometric measurements in eyes with less transparent ocular media or longer AL.
PB Nature Publishing Group
SN 0950-222X
YR 2016
FD 2016-11-11
LK https://hdl.handle.net/20.500.14352/17554
UL https://hdl.handle.net/20.500.14352/17554
LA eng
NO Arriola Villalobos, P., Almendral Gómez, J., Garzón Jiménez, N. et al. «Agreement and Clinical Comparison between a New Swept-Source Optical Coherence Tomography-Based Optical Biometer and an Optical Low-Coherence Reflectometry Biometer». Eye, vol. 31, n.o 3, marzo de 2017, pp. 437-42. DOI.org (Crossref), https://doi.org/10.1038/eye.2016.241.
NO Clinical Study
DS Docta Complutense
RD 30 sept 2024