Extending a Standard SD-OCT Device to Ocular Biometry with Additional Software: Agreement and Clinical Applicability Compared with Ultrasound and Optical Biometry
- 1Department of Ophthalmology Medar Hospital, Kocaeli Health and Technology University, 41275 Kocaeli, Türkiye
Abstract
Background/Objectives: Although commercially available spectral-domain optical coherence tomography (SD-OCT) platforms are primarily designed for retinal and anterior segment imaging, ocular biometry can be enabled through additional software. This study evaluated the clinical applicability, interdevice agreement, and measurement success of this underexplored practical approach compared with conventional ultrasound and optical biometry. Methods: Clinical and biometric data of participants evaluated for refractive lens extraction (RLE) or cataract surgery were reviewed, and participants were classified into two groups according to lens opacity. Anterior chamber depth (ACD) and axial length (AL) measurements obtained with SD-OCT biometry (REVO 60, Optopol Technology, Zawiercie, Poland), ultrasound biometry (Accutome Inc., Malvern, PA, USA), and optical biometry (SW-9000 Plus, Suowei Electronic Technology, Tianjin, China) were analyzed. Measurement success and biometric measurements were evaluated separately within each group. Interdevice agreement was analyzed using intraclass correlation coefficients (ICCs) and Bland–Altman analysis. Results: This study included 207 eyes of 207 patients (62 RLE and 145 cataract eyes). Measurement success in the RLE group was 100% for all three methods. In the cataract group, success rates were 48.3% for SD-OCT, 80.0% for optical biometry, and 100% for ultrasound biometry. For AL, SD-OCT showed excellent agreement with ultrasound and optical biometry in both the RLE (ICC = 0.978 and 0.980, respectively) and cataract groups (ICC = 0.981 and 0.984, respectively). For ACD, agreement with ultrasound and optical biometry was good in the RLE group (ICC = 0.799 and 0.822, respectively) and moderate in the cataract group (ICC = 0.653 and 0.702, respectively). In the RLE group, AL measurements obtained with SD-OCT were significantly higher than those obtained with both ultrasound (p < 0.001) and optical biometry (p = 0.003). In cataract eyes, AL measurements did not differ significantly from ultrasound biometry (p = 0.066) or optical biometry (p = 0.859). Conclusions: SD-OCT biometry showed excellent agreement with established methods for AL when measurements were successfully obtained. However, measurement success in cataractous eyes was substantially lower than in optical biometry, limiting its current use as a standalone biometry method.
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BibTeX
@article{gunes2026extending,
title = {{Extending a Standard SD-OCT Device to Ocular Biometry with Additional Software: Agreement and Clinical Applicability Compared with Ultrasound and Optical Biometry}},
author = {İrfan Botan Güneş},
journal = {Journal of Clinical Medicine},
year = {2026},
month = nov,
doi = {10.3390/jcm15218673},
url = {https://www.mdpi.com/2077-0383/15/21/8673},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Extending a Standard SD-OCT Device to Ocular Biometry with Additional Software: Agreement and Clinical Applicability Compared with Ultrasound and Optical Biometry
AU - İrfan Botan Güneş
PY - 2026
DA - 2026/11/06
JO - Journal of Clinical Medicine
DO - 10.3390/jcm15218673
UR - https://www.mdpi.com/2077-0383/15/21/8673
AB - Background/Objectives: Although commercially available spectral-domain optical coherence tomography (SD-OCT) platforms are primarily designed for retinal and anterior segment imaging, ocular biometry can be enabled through additional software. This study evaluated the clinical applicability, interdevice agreement, and measurement success of this underexplored practical approach compared with conventional ultrasound and optical biometry. Methods: Clinical and biometric data of participants evaluated for refractive lens extraction (RLE) or cataract surgery were reviewed, and participants were classified into two groups according to lens opacity. Anterior chamber depth (ACD) and axial length (AL) measurements obtained with SD-OCT biometry (REVO 60, Optopol Technology, Zawiercie, Poland), ultrasound biometry (Accutome Inc., Malvern, PA, USA), and optical biometry (SW-9000 Plus, Suowei Electronic Technology, Tianjin, China) were analyzed. Measurement success and biometric measurements were evaluated separately within each group. Interdevice agreement was analyzed using intraclass correlation coefficients (ICCs) and Bland–Altman analysis. Results: This study included 207 eyes of 207 patients (62 RLE and 145 cataract eyes). Measurement success in the RLE group was 100% for all three methods. In the cataract group, success rates were 48.3% for SD-OCT, 80.0% for optical biometry, and 100% for ultrasound biometry. For AL, SD-OCT showed excellent agreement with ultrasound and optical biometry in both the RLE (ICC = 0.978 and 0.980, respectively) and cataract groups (ICC = 0.981 and 0.984, respectively). For ACD, agreement with ultrasound and optical biometry was good in the RLE group (ICC = 0.799 and 0.822, respectively) and moderate in the cataract group (ICC = 0.653 and 0.702, respectively). In the RLE group, AL measurements obtained with SD-OCT were significantly higher than those obtained with both ultrasound (p < 0.001) and optical biometry (p = 0.003). In cataract eyes, AL measurements did not differ significantly from ultrasound biometry (p = 0.066) or optical biometry (p = 0.859). Conclusions: SD-OCT biometry showed excellent agreement with established methods for AL when measurements were successfully obtained. However, measurement success in cataractous eyes was substantially lower than in optical biometry, limiting its current use as a standalone biometry method.
SN - 2077-0383
ER -