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首页> 外文期刊>Journal of cataract and refractive surgery >Scheimpflug photography-based clinical characterization of the correlation of the corneal shape between the anterior and posterior corneal surfaces in the normal human eye.
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Scheimpflug photography-based clinical characterization of the correlation of the corneal shape between the anterior and posterior corneal surfaces in the normal human eye.

机译：基于Scheimpflug的临床表征在正常人眼中前角膜表面和后部角膜表面之间的角膜形状的相关性。

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摘要

To evaluate the correlation of the mean curvature and shape factors between both corneal surfaces for different corneal diameters measured with a Scheimpflug photography-based system.Vissum Corporation, Alicante, Spain.Case series.Randomly selected healthy normal eyes had a comprehensive ophthalmologic examination including anterior segment analysis with the Sirius system as follows: anterior and posterior mean corneal radius for 3.0 mm, 5.0 mm, and 7.0 mm; anterior and posterior mean shape factor for 4.5 mm and 8.0 mm; central (CCT) and minimum corneal thickness; and anterior chamber depth (ACD).The study enrolled 117 eyes (117 subjects; aged 7 to 80 years). The mean anterior mean corneal radius:posterior mean corneal radius ratio was 1.19 (range 1.12 to 1.27) for all corneal diameters (P = .86). The correlation coefficient between the anterior and posterior mean corneal radius was 0.85 or more for all corneal diameters. The anterior mean shape factor:posterior mean shape factor ratio for the 2 corneal diameters analyzed was approximately 1 (range 0.45 to 4.03). The correlations between anterior and posterior mean shape factors were extremely poor and not significant. Multiple regression analysis showed that the central posterior mean corneal radius was?significantly correlated with the anterior mean corneal radius, CCT, and spherical equivalent (R(2) = 0.77, P<.01).Central posterior corneal curvature could be predicted from the anterior corneal curvature, pachymetry, and the refractive status of the eye but not from the corneal shape factor.No author has a financial or proprietary interest in any material or method mentioned.
机译：评估用基于Scheimpflug摄影型系统测量的不同角膜直径的平均曲率和形状因子的相关性.Vissum Corporation，Alicante，Spain。Case系列。综合选择的健康正常眼睛，包括前型眼科检查SIRIUS系统的段分析如下：前部和后部平均角膜半径3.0 mm，5.0 mm，7.0 mm;前部和后部平均形状因子4.5 mm和8.0 mm;中央（CCT）和最小角膜厚度;和前房深度（ACD）。学习注册了117只眼睛（117名科目;年龄在7至80岁）。平均前平均角膜半径：后平均角膜半径比为所有角膜直径为1.19（1.12至1.27）（p = .86）。对于所有角膜直径，前部和后部角膜半径之间的相关系数为0.85以上。前平均形状因子：分析的2个角膜直径的后平均形状因子比约为1（范围为0.45至4.03）。前部和后部形状因子之间的相关性极差，并且不显着。多元回归分析表明，中央后部平均角膜半径是α与前平均角膜半径，CCT和球形等效物显着相关（R（2）= 0.77，P <.01）。可以从中预测中央后角膜曲率。前角膜曲率，触发和眼睛的折射状况，但不是来自角膜形状因子。No作者对任何提到的任何材料或方法都有金融或专有的兴趣。

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