Patent ID: 9474647
Filing Date: 2016-10-25
CPC Classification: A61B,A61F

Claim Text:
1. A planning device for producing control data for a treatment device for eye surgery which produces at least one cutting surface in a cornea of an eye using a laser device to produce a lenticule for removal from the eye, the planning device comprising: a calculation module for establishing the at least one cutting surface defining the lenticule, the calculation module being configured to: establish the at least one cutting surface based on data of a desired refraction correction of the eye, produce a control data set for actuating the laser device for the at least one cutting surface, and determine the at least one cutting surface in such a way that it comprises a plurality of zones, wherein the plurality of zones comprises: wherein the first and second depths differ from each other, and wherein the first and second refraction corrections are equal to each other and to the desired refraction correction of the eye.