公开(公告)号：EP2347740A1

公开(公告)日：2011-07-27

申请号：EP10151589.8

申请日：2010-01-25

申请人： Technolas Perfect Vision GmbH

发明人： Hohla, Kristian ,  Loesel, Frieder ,  Youssefi, Gerhard, Dr.

IPC分类号： A61F9/01

CPC分类号： A61F9/00808 ,  A61F9/008 ,  A61F2009/00872 ,  A61F2009/0088 ,  A61F2009/00895

摘要： The system according to the present invention is used to create an ablation such that the surface of the cornea comprises a central region having a convex central steepening with a first radius of curvature and a surrounding region having a convex shape with a second radius of curvature, wherein the first radius of curvature is smaller than the second radius of curvature for performing a presbyopic correction. The ablation depth in the central region varies between a minimum ablation depth in the center and a maximum ablation depth at the border of the central region. The ablation depth in the surrounding region is the same as the maximum ablation depth at the border of the central region.

摘要翻译： 根据本发明的系统用于产生消融，使得角膜的表面包括具有第一曲率半径的凸起中心陡峭的中心区域和具有第二曲率半径的凸形形状的周围区域， 其中所述第一曲率半径小于用于执行远视校正的所述第二曲率半径。 中心区域的消融深度在中心的最小消融深度和中心区域边界处的最大消融深度之间变化。 周围区域的消融深度与中心区域边界处的最大消融深度相同。