Kasprzak H, Förster W, von Bally G
Laboratory of Biophysics, University of Muenster, Federal Republic of Germany.
Optom Vis Sci. 1993 Jul;70(7):535-44. doi: 10.1097/00006324-199307000-00004.
Holographic interferometry of the cornea of fresh, enucleated bovine eyes placed in air was used for determination of the elastic modulus of the central part of the cornea. The high sensitivity of the method enables measurement of the radial distension of the cornea even for intraocular pressure (IOP) changes equal to 5 Pa (0.05 mbar or approximately 0.0375 mm Hg). The method of calculation of the tangent Young's modulus of the cornea Et, based on data obtained from double exposure as well as real-time holographic interferograms and on some geometrical data describing the form of the cornea are presented. The average value of Et amounting to 1.42.10(5) Pa was calculated from 2 interferograms of the same eye.
对置于空气中的新鲜摘除的牛眼角膜进行全息干涉测量，以测定角膜中央部分的弹性模量。该方法的高灵敏度使得即使眼内压（IOP）变化仅为5帕斯卡（0.05毫巴或约0.0375毫米汞柱）时，也能测量角膜的径向扩张。本文介绍了基于双曝光以及实时全息干涉图所获数据和一些描述角膜形状的几何数据来计算角膜切线杨氏模量Et的方法。从同一只眼睛的两张干涉图计算得出Et的平均值为1.42×10⁵帕斯卡。
