公开(公告)号：EP3082566A1

公开(公告)日：2016-10-26

申请号：EP14828346.8

申请日：2014-12-19

申请人： Cassini B.V.

发明人： ENSING, Ronald Matijs ,  DE PAZ SICAM, Victor Arni

IPC分类号： A61B3/036 ,  A61B3/107

CPC分类号： A61B3/107 ,  A61B3/0025 ,  A61B3/036 ,  A61B3/1035 ,  A61B3/14

摘要： A method of determining global shape parameters of a cornea is disclosed, the method comprising: -determining a height map of a cornea by: i. Illuminating a cornea of an eye using a stimulator source comprising a plurality of point sources; ii. capturing a reflected image of the plurality of point sources and determining a position of reflections of the respective plurality of point sources and iii. deriving the height map of the cornea based on a position of the plurality of point sources and the position of the reflections of the respective plurality of point sources; - fitting the height map as derived to a toric aspheric model to obtain a global fitting of the corneal surface to the toric aspheric model and; - using the global fitting to determine one or more parameters related to an astigmatism of the cornea.

摘要翻译： 挖掘角膜的确定性全局形状参数的方法，包括确定开采的角膜的高度图的条件：使用具有点光源的多个A刺激源照亮眼睛的角膜; 捕获点源和确定性采矿点源的respectivement多个反射的位置的多个反射图像和基于点源的多个位置和respectivement的反射的位置导出所述角膜的高度图 点源的多个; 拟合高度地图作为衍生于复曲面的非球面模型，以获得角膜表面到非球面复曲面模型和一个全局拟合; 使用全局拟合确定性矿在角膜散光与一个或多个参数。