Korean J Ophthalmol > Volume 36(4); 2022 > Article
Korean Journal of Ophthalmology 2022;36(4):326-337.
DOI: https://doi.org/10.3341/kjo.2022.0017    Published online June 15, 2022.
Agreement between Two Swept-Source Optical Coherence Tomography Biometers and a Partial Coherence Interferometer
Ji Young Moon1, Soo Chang Cho1, Hyun Jin Kim1, Roo Min Jun2, Kyung Eun Han1
1Department of Ophthalmology, Ewha Womans University Mokdong Hospital, Ewha Womans University School of Medicine, Seoul, Korea
2Department of Ophthalmology, Ewha Womans University Seoul Hospital, Ewha Womans University School of Medicine, Seoul, Korea
Correspondence:  Kyung Eun Han, Tel: 82-2-2650-5154, Fax: 82-2654-4334, 
Email: hanke@ewha.ac.kr
Received: 15 February 2022   • Revised: 31 March 2022   • Accepted: 26 April 2022
Abstract
Purpose
To evaluate the level of agreement between ANTERION (Heidelberg Engineering, Heidelberg, Germany), OA-2000 (Tomey, Nagoya, Japan), and IOLMaster 500 (Carl Zeiss AG, Jena, Germany).
Methods
Fifty-one eyes of 51 patients were included in the study. Flat keratometry (K) and steep K, vector component of astigmatism (Jackson cross-cylinder at 0° and 90° [J0] and Jackson cross-cylinder at 45° and 135° [J45]), anterior chamber depth, and axial length were compared using the three devices. Repeated measures analysis of variance was conducted to compare the mean values of the biometrics. Pearson correlation test was conducted to analyze the correlations of the measured values, and a Bland-Altman plot was used to assess the agreement between the three devices. The predicted intraocular lens power of each device was compared to the others using the SRK/T, Haigis, Barrett Universal II, and Kane formulas.
Results
All K values measured using ANTERION were flatter than those of other instruments. However, good agreement was observed for flat K (ANTERION - OA-2000; 95% limits of agreement [LoA], 0.86 diopters [D]) and steep K (ANTERION - OA2000; 95% LoA, 0.93 D) and OA-2000 - IOLMaster 500 (95% LoA, 0.93 D). J0 and J45 vector components of astigmatism were not statistically different; however, the agreements were poor between the devices (95% LoA ≥1.97 D). Anterior chamber depth values of ANTERION and OA-2000 were interchangeable (95% LoA, 0.15 mm). The axial length showed a high agreement (95% LoA ≤0.17 mm) among the three devices. The predicted intraocular lens powers of the three devices were not interchangeable regardless of formulas (95% LoA ≥1.04 D).
Conclusions
Significant differences in ocular biometrics were observed between ANTERION and the other two devices. This study demonstrated that only axial length showed good agreement among devices.
Key Words: Biometry, Partial coherence interferometer, Swept-source optical coherence tomography


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