韩国患者用 Scheimpflug 照相机和 Placido 盘式地形图测量的角膜高阶像差比较

IF 0.1 Q4 OPHTHALMOLOGY
Yeon Ju Lim, Do Hee Jung, K. Pak, Chan-Ho Cho
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引用次数: 0

摘要

目的:我们比较了使用Scheimpflug原理的Pentacam® HR(PC)和评估Placido圆盘地形图的iTraceTM像差仪(IT)的角膜高阶像差(HOA)测量结果:我们回顾性地分析了 2021 年 1 月至 2022 年 12 月期间 87 位无眼表疾病史患者的 109 只眼睛,两种设备均在同一天使用。我们计算了瞳孔直径为 4 毫米时角膜总 HOA 以及角膜三阶和四阶 HOA 的均方根值 (μm)。数据比较采用布兰-阿尔特曼图(Bland-Altman plots)进行一致性分析,采用皮尔逊相关系数(Pearson correlation coefficient)进行相关性分析:PC和IT测量的总HOA(p = 0.145)、昏迷(p = 0.309)或二次散光(p = 0.080)无明显差异;所有其他HOA在不同设备间均有明显差异(p < 0.001)。在相关性分析中,两种设备之间的总 HOA(r = 0.605,p < 0.001)和昏迷(r = 0.634,p < 0.001)呈中度相关;其他 HOA 的相关性较低。在Bland-Altman图分析中,两台设备的所有HOA都显示出较低的一致性:结论:两台设备测量的角膜总HOA和昏迷在两台设备之间有显著相关性,但其他HOA的测量结果显示出显著差异,相关性较低。因此,两种设备的角膜 HOA 测量结果不能互换解释。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Comparison of Corneal Higher-order Aberrations Measured by Scheimpflug Camera and Placido Disc-based Topography in Korean Patients
Purpose: We compared corneal higher-order aberration (HOA) measurements between the Pentacam® HR (PC), which uses the Scheimpflug principle, and the iTraceTM aberrometer (IT), which evaluates Placido disc topography.Methods: We retrospectively analyzed 109 eyes of 87 patients without a history of ocular surface disease during the period from January 2021 to December 2022; both devices were used on the same day. We calculated the root mean square values (μm) of corneal total HOA and of the corneal 3rd- and 4th-order HOA at a pupil diameter of 4 mm. Data were compared by Bland-Altman plots for agreement analysis and Pearson correlation coefficient for correlation analysis.Results: There was no significant difference in the total HOA (p = 0.145), coma (p = 0.309), or secondary astigmatism (p = 0.080) between the PC and IT measurements; all other HOAs significantly differed between devices (p < 0.001). In the correlation analysis, the total HOA (r = 0.605, p < 0.001) and coma (r = 0.634, p < 0.001) were moderately correlated between the two devices; the other HOAs showed low degree of correlations. In the Bland-Altman plot analysis, all HOAs showed low agreement between the two devices.Conclusions: Corneal total HOA and coma measured by the two devices were significantly correlated between the two devices, but other HOAs showed significant differences in measurement and low correlations. Therefore, corneal HOA measurements cannot be interpreted interchangeably between the two devices.
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