Sobczak Marcelina, Asejczyk Magdalena
Department of Optics and Photonics, Wrocław University of Science and Technology, Wybrzeże Stanisława Wyspiańskiego 27, 50-370 Wrocław, Poland.
Biomed Opt Express. 2021 Dec 1;12(12):7872-7885. doi: 10.1364/BOE.440274.
Mueller type polarimeter was used for measurements of the anisotropic parameters (retardation and azimuth angle) of corneas. To determine birefringence, corneal thickness was measured with a Scheimpflug camera (Corvist ST). The retardation distributions in the nasal-temporal cross-section in both children (N=7) and adults (N=38) groups occurred asymmetrical. The asymmetry in birefringence distributions was observed only in adults group. The geometrical analysis of the first order isochromes in both age groups showed the asymmetry of its shapes. The changes of symmetry in birefringent properties with age may have potential relationship with changing corneal biometry.
使用穆勒型偏振计测量角膜的各向异性参数(相位延迟和方位角)。为了确定双折射,用Scheimpflug相机(Corvist ST)测量角膜厚度。儿童组(N = 7)和成人组(N = 38)的鼻颞截面中的相位延迟分布均不对称。仅在成人组中观察到双折射分布的不对称性。两个年龄组中一阶等色线的几何分析显示其形状不对称。双折射特性随年龄的对称性变化可能与角膜生物测量的变化存在潜在关系。