Patent ID: 8425499
Filing Date: 2013-04-23
Classification: A61F

Abstract:
1. Process for treating the human eye, including: providing first pulsed laser radiation, the laser radiation having a radiation focus; directing the first laser radiation onto a human cornea of an eye to be treated; and controlling the radiation focus of the first laser radiation for the purpose of generating a flap incision in the cornea forming a flap and also for the purpose of generating an auxiliary incision connected with the flap incision, wherein the flap incision includes a bed incision and a lateral incision, the bed incision being a flat surface incision in a stromal bed of the eye and the lateral incision extending from the bed incision to a surface of the cornea to define the flap, the flap connected to the stromal bed by a hinge defined by remaining corneal tissue; wherein the auxiliary incision is formed temporally before the flap incision, the auxiliary incision extending from a surface of the cornea to a depth of the bed incision such that the auxiliary incision defines a channel having a substantially constant width and gradient angle along its length such that gases formed subsequently during at least the bed incision are able to escape from the eye; wherein the auxiliary incision extends from the surface of the cornea on a first side of the hinge and the lateral incision of the flap incision extends from the surface of the cornea on a second side of the hinge opposite the first side.