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Huang X, Lin X, Yang Y, Yu J, Wang J, Li K, Wang Y, Savini G, Schiano-Lomoriello D, Zhou X, Huang J. Comparison of a New Scheimpflug Camera and Swept-Source Optical Coherence Tomographer for Measurements of Anterior Segment Parameters. Ophthalmol Ther 2023; 12:3187-3198. [PMID: 37747639 PMCID: PMC10640599 DOI: 10.1007/s40123-023-00813-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Accepted: 08/31/2023] [Indexed: 09/26/2023] Open
Abstract
INTRODUCTION This study evaluated the differences and agreement between a new Scheimpflug camera (Scansys) and a swept-source anterior segment optical coherence tomographer (CASIA 2) for measurements of the anterior segment of the eye in normal subjects. METHODS This prospective study included 84 eyes from 84 normal adult subjects who underwent three consecutive measurements with the Scansys and the CASIA 2 in random order. The mean keratometry (Km), astigmatism magnitude (AST), J0, and J45 vectors for both anterior and posterior corneal surfaces, central corneal thickness (CCT), thinnest corneal thickness (TCT), and anterior chamber depth (ACD) were obtained by both devices. The difference between these two devices was assessed using paired t test and violin plots. Bland-Altman plots and 95% limits of agreement (LoAs) were used to evaluate agreement. RESULTS No statistically significant differences between the two devices were found for the anterior AST, anterior J45, and posterior J45 (P > 0.05). The remaining parameters were statistically significant (P ≤ 0.05), but the differences not clinically significant. The violin plots showed that the distribution and probability density of the measured parameters were similar for both devices. Bland-Altman plots revealed high agreement for the measured parameters between the Scansys and CASIA 2, with narrow 95% LoAs. CONCLUSIONS In terms of assessing parameters for the anterior segment, our study indicated that Scansys and CASIA 2 generally showed significant agreement. The two devices used in this study's assessment of all the parameters can be used interchangeably in refractive analysis.
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Affiliation(s)
- Xiaomin Huang
- Eye Institute and Department of Ophthalmology and Vision Science, Eye & ENT Hospital, Fudan University, No.19 Baoqing Road, Xuhui District, Shanghai, 200031, China
- Shanghai Research Center of Ophthalmology and Optometry, Shanghai, China
- Key Laboratory of Myopia, NHC Key Laboratory of Myopia (Fudan University), Chinese Academy of Medical Sciences, Shanghai, China
| | - Xuanqiao Lin
- Eye Hospital and School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yizhou Yang
- Eye Hospital and School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Jinjin Yu
- Eye Institute and Department of Ophthalmology and Vision Science, Eye & ENT Hospital, Fudan University, No.19 Baoqing Road, Xuhui District, Shanghai, 200031, China
- Shanghai Research Center of Ophthalmology and Optometry, Shanghai, China
- Key Laboratory of Myopia, NHC Key Laboratory of Myopia (Fudan University), Chinese Academy of Medical Sciences, Shanghai, China
| | - Jiacheng Wang
- Eye Institute and Department of Ophthalmology and Vision Science, Eye & ENT Hospital, Fudan University, No.19 Baoqing Road, Xuhui District, Shanghai, 200031, China
- Shanghai Research Center of Ophthalmology and Optometry, Shanghai, China
- Key Laboratory of Myopia, NHC Key Laboratory of Myopia (Fudan University), Chinese Academy of Medical Sciences, Shanghai, China
| | - Kexin Li
- Eye Institute and Department of Ophthalmology and Vision Science, Eye & ENT Hospital, Fudan University, No.19 Baoqing Road, Xuhui District, Shanghai, 200031, China
- Shanghai Research Center of Ophthalmology and Optometry, Shanghai, China
- Key Laboratory of Myopia, NHC Key Laboratory of Myopia (Fudan University), Chinese Academy of Medical Sciences, Shanghai, China
| | - Yiran Wang
- Eye Institute and Department of Ophthalmology and Vision Science, Eye & ENT Hospital, Fudan University, No.19 Baoqing Road, Xuhui District, Shanghai, 200031, China
- Shanghai Research Center of Ophthalmology and Optometry, Shanghai, China
- Key Laboratory of Myopia, NHC Key Laboratory of Myopia (Fudan University), Chinese Academy of Medical Sciences, Shanghai, China
| | | | | | - Xingtao Zhou
- Eye Institute and Department of Ophthalmology and Vision Science, Eye & ENT Hospital, Fudan University, No.19 Baoqing Road, Xuhui District, Shanghai, 200031, China
- Shanghai Research Center of Ophthalmology and Optometry, Shanghai, China
- Key Laboratory of Myopia, NHC Key Laboratory of Myopia (Fudan University), Chinese Academy of Medical Sciences, Shanghai, China
| | - Jinhai Huang
- Eye Institute and Department of Ophthalmology and Vision Science, Eye & ENT Hospital, Fudan University, No.19 Baoqing Road, Xuhui District, Shanghai, 200031, China.
- Shanghai Research Center of Ophthalmology and Optometry, Shanghai, China.
- Key Laboratory of Myopia, NHC Key Laboratory of Myopia (Fudan University), Chinese Academy of Medical Sciences, Shanghai, China.
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