PMID- 37142332 OWN - NLM STAT- Publisher LR - 20230504 IS - 1468-2079 (Electronic) IS - 0007-1161 (Linking) DP - 2023 May 4 TI - Repeatability and reproducibility of a new fully automatic measurement optical low coherence reflectometry biometer and agreement with swept-source optical coherence tomography-based biometer. LID - bjo-2023-323268 [pii] LID - 10.1136/bjo-2023-323268 [doi] AB - AIMS: To assess the repeatability and reproducibility of the ocular measurements obtained with the Suoer SW-9000 mum Plus, a new fully automatic biometer based on optical low coherence reflectometry (OLCR) biometer, and to compare them to those obtained by a swept-source optical coherence tomography (SS-OCT)-based biometer. METHODS: This prospective study consisted of 115 eyes of 115 healthy subjects. The measurements were taken by the two optical biometers in random order. The measured parameters were axial length (AL), central corneal thickness (CCT), aqueous depth (AQD), anterior chamber depth (ACD), mean keratometry (Km), lens thickness (LT) and corneal diameter (CD). To evaluate the intraobserver repeatability and interobserver reproducibility, the within-subject SD, test-retest variability, coefficient of variation (CoV) and intraclass correlation coefficient (ICC) were adopted. The Bland-Altman plot was drawn to assess the agreement. RESULTS: The repeatability and reproducibility of all parameters for the new device were excellent (ICC>0.960 and CoV<0.71%). The Bland-Altman plots showed high agreement between the OLCR-based and SS-OCT-based devices for AL, CCT, AQD, ACD, Km and LT, with narrow 95% limit of agreements (LoAs) (-0.08 mm to 0.06 mm, -15.91 microm to -1.01 microm, -0.09 mm to 0.09 mm, -0.09 mm to 0.08 mm, -0.47 D to 0.35 D, -0.05 mm to 0.16 mm, respectively) and moderate agreement for CD (95% LoA: -0.67 mm to -0.01 mm). CONCLUSIONS: The new Suoer SW-9000 mum Plus biometer showed excellent repeatability and reproducibility. All the parameters obtained by this biometer were similar to those measured by SS-OCT-based biometer. CI - (c) Author(s) (or their employer(s)) 2023. No commercial re-use. See rights and permissions. Published by BMJ. FAU - Yu, Jinjin AU - Yu J AD - Eye Institute and Department of Ophthalmology, Institute for Medical and Engineering Innovation, Eye & ENT Hospital, NHC Key Laboratory of Myopia (Fudan University), Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Fudan University, Shanghai, China. AD - Shanghai Research Center of Ophthalmology and Optometry, Shanghai, China. FAU - Zhao, Guoli AU - Zhao G AD - Eye Institute and Department of Ophthalmology, Institute for Medical and Engineering Innovation, Eye & ENT Hospital, NHC Key Laboratory of Myopia (Fudan University), Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Fudan University, Shanghai, China. AD - Shanghai Research Center of Ophthalmology and Optometry, Shanghai, China. FAU - Lei, Chak Seng AU - Lei CS AD - Eye Institute and Department of Ophthalmology, Institute for Medical and Engineering Innovation, Eye & ENT Hospital, NHC Key Laboratory of Myopia (Fudan University), Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Fudan University, Shanghai, China. AD - Shanghai Research Center of Ophthalmology and Optometry, Shanghai, China. FAU - Wan, Ting AU - Wan T AD - Eye Hospital and School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, Zhejiang, China. FAU - Ning, Rui AU - Ning R AD - Eye Institute and Department of Ophthalmology, Institute for Medical and Engineering Innovation, Eye & ENT Hospital, NHC Key Laboratory of Myopia (Fudan University), Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Fudan University, Shanghai, China. AD - Shanghai Research Center of Ophthalmology and Optometry, Shanghai, China. FAU - Xing, Wenqian AU - Xing W AD - Eye Institute and Department of Ophthalmology, Institute for Medical and Engineering Innovation, Eye & ENT Hospital, NHC Key Laboratory of Myopia (Fudan University), Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Fudan University, Shanghai, China. AD - Shanghai Research Center of Ophthalmology and Optometry, Shanghai, China. FAU - Ma, Xindi AU - Ma X AD - Eye Institute and Department of Ophthalmology, Institute for Medical and Engineering Innovation, Eye & ENT Hospital, NHC Key Laboratory of Myopia (Fudan University), Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Fudan University, Shanghai, China. AD - Shanghai Research Center of Ophthalmology and Optometry, Shanghai, China. FAU - Pan, Hongxian AU - Pan H AD - Eye Institute and Department of Ophthalmology, Institute for Medical and Engineering Innovation, Eye & ENT Hospital, NHC Key Laboratory of Myopia (Fudan University), Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Fudan University, Shanghai, China. AD - Shanghai Research Center of Ophthalmology and Optometry, Shanghai, China. FAU - Savini, Giacomo AU - Savini G AUID- ORCID: 0000-0003-0075-3582 AD - G.B. Bietti Foundation I.R.C.C.S, Rome, Italy. FAU - Schiano-Lomoriello, Domenico AU - Schiano-Lomoriello D AD - G.B. Bietti Foundation I.R.C.C.S, Rome, Italy. FAU - Zhou, Xingtao AU - Zhou X AD - Eye Institute and Department of Ophthalmology, Institute for Medical and Engineering Innovation, Eye & ENT Hospital, NHC Key Laboratory of Myopia (Fudan University), Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Fudan University, Shanghai, China vip999vip@163.com xingtaozhou@fudan.edu.cn. AD - Shanghai Research Center of Ophthalmology and Optometry, Shanghai, China. FAU - Huang, Jinhai AU - Huang J AUID- ORCID: 0000-0001-9952-3175 AD - Eye Institute and Department of Ophthalmology, Institute for Medical and Engineering Innovation, Eye & ENT Hospital, NHC Key Laboratory of Myopia (Fudan University), Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Fudan University, Shanghai, China vip999vip@163.com xingtaozhou@fudan.edu.cn. AD - Shanghai Research Center of Ophthalmology and Optometry, Shanghai, China. LA - eng PT - Journal Article DEP - 20230504 PL - England TA - Br J Ophthalmol JT - The British journal of ophthalmology JID - 0421041 SB - IM OTO - NOTNLM OT - Imaging OT - Optics and Refraction COIS- Competing interests: None declared. EDAT- 2023/05/05 00:42 MHDA- 2023/05/05 00:42 CRDT- 2023/05/04 20:53 PHST- 2023/01/16 00:00 [received] PHST- 2023/04/13 00:00 [accepted] PHST- 2023/05/05 00:42 [medline] PHST- 2023/05/05 00:42 [pubmed] PHST- 2023/05/04 20:53 [entrez] AID - bjo-2023-323268 [pii] AID - 10.1136/bjo-2023-323268 [doi] PST - aheadofprint SO - Br J Ophthalmol. 2023 May 4:bjo-2023-323268. doi: 10.1136/bjo-2023-323268.