Baradaran-Rafii Alireza, Motevasseli Tahmineh, Yazdizadeh Forouzan, Karimian Farid, Fekri Sahba, Baradaran-Rafii Amir
Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Department of Mechanical Engineering, Amirkabir University of Technology, Tehran, Iran.
J Ophthalmic Vis Res. 2017 Jan-Mar;12(1):23-29. doi: 10.4103/jovr.jovr_104_16.
To compare the anterior segment indices measured by two Scheimpflug camera machines; Galilei and Pentacam.
In this observational case series, the anterior segment indices of myopic healthy subjects seeking for refractive surgery were measured by Pentacam and Galilei on the same day. Analyzed parameters were anterior and posterior best fit spheres (BFS), axial curvature, true corneal power, central corneal thickness (CCT), anterior chamber (AC) depth, AC volume, AC angle, and pupil diameter.
This study included 176 eyes of 88 participants. Mean radius of the anterior BFS was 7.79 ± 0.34 mm versus 7.75 ± 0.39 mm measured by Pentacam and Galilei, respectively ( = 0.877, < 0.001). Corresponding values for the mean radius of posterior BFS were 6.42 ± 0.32 and 6.47 ± 0.38 mm, respectively ( = 0.879, < 0.001). Anterior corneal mean power was 43.8 ± 1.9 diopters (D) with Pentacam and 43.8 ± 2.4 D with Galilei ( = 0.905,P < 0.001). Posterior corneal mean power was measured - 6.3 ± 0.3 and - 6.3 ± 0.4 D using Pentacam and Galilei, respectively ( = 0.873, < 0.001). True corneal power was 43.9 ± 1.9 D with Pentacam and 43.5 ± 2.3 D with Galilei ( = 0.909, < 0.001). CCT was 537 ± 44 and 553 ± 51 μm measured by Pentacam and Galilei, respectively ( = 0.796, < 0.001). AC depth measurements using Pentacam and Galilei were 3.29 ± 0.4 and 3.3 ± 0.38 mm ( < 0.001), respectively; AC volume was 207 ± 50 and 129 ± 39 mm≥ ( = 0.004), and AC angle was 39.7 ± 9.2 and 54.2 ± 5.2 degrees ( = 0.051), respectively. Average pupil diameter was measured 3.91 ± 1.77 mm by Pentacam and 3.34 ± 0.89 mm by Galilei ( = 0.018).
There was a significant correlation between the Pentacam and Galilei in all measured parameters except AC angle, AC volume, and average pupil diameter.
比较两款眼前节分析系统（Galilei和Pentacam）测量的眼前节参数。
在这个观察性病例系列研究中，同一天使用Pentacam和Galilei对寻求屈光手术的近视健康受试者的眼前节参数进行测量。分析的参数包括前后最佳拟合球面（BFS）、轴向曲率、真实角膜屈光力、中央角膜厚度（CCT）、前房（AC）深度、AC容积、AC角和瞳孔直径。
本研究纳入了88名参与者的176只眼。Pentacam测量的前BFS平均半径为7.79±0.34mm，Galilei测量的为7.75±0.39mm（t = 0.877，P < 0.001）。后BFS平均半径的相应值分别为6.42±0.32mm和6.47±0.38mm（t = 0.879，P < 0.001）。Pentacam测量的角膜前表面平均屈光力为43.8±1.9屈光度（D），Galilei测量的为43.8±2.4D（t = 0.905，P < 0.001）。Pentacam和Galilei测量的角膜后表面平均屈光力分别为-6.3±0.3D和-6.3±0.4D（t = 0.873，P < 0.001）。Pentacam测量的真实角膜屈光力为43.9±1.9D，Galilei测量的为43.5±2.3D（t = 0.909，P < 0.001）。Pentacam和Galilei测量的CCT分别为537±44μm和553±51μm（t = 0.796，P < 0.001）。Pentacam和Galilei测量的AC深度分别为3.29±0.4mm和3.3±0.38mm（P < 0.001）；AC容积分别为207±50mm³和129±39mm³（t = 0.004），AC角分别为39.7±9.2度和54.2±5.2度（t = 0.051）。Pentacam测量的平均瞳孔直径为3.91±1.77mm，Galilei测量的为3.34±0.89mm（t = 0.018）。
除AC角、AC容积和平均瞳孔直径外，Pentacam和Galilei在所有测量参数上均存在显著相关性。
