INCISION PORTION STRUCTURE, HAVING REINFORCEMENT PORTIONS TO BE FORMED ON CORNEA, FOR REMOVING LENTICULE INCISED ACCORDING TO EYE SIGHT CORRECTION SURGERY

摘要

Disclosed herein is an incision part formed in a cornea to remove a lenticule cut in the course of vision correction surgery, the vision correction surgery for correcting abnormal refraction being performed by drawing a dense spiral toward the center of the cornea or outward from the center of the cornea while three-dimensionally changing the focal point of a laser beam to form a flap surface and a lenticular surface each having a continuous spiral incision line in a corneal stroma such that the flap surface and the lenticular surface are spaced apart from each other, making the outer circumference of the lenticular surface intersect the outer circumference of the flap surface inside the outer circumference of the flap surface to cut a three-dimensional lenticule from the corneal stroma, and removing the lenticule out of the cornea through an incision part formed in the cornea, wherein the incision part includes an incision entrance formed in the surface of the cornea adjacent to the outer circumference of the flap surface, the incision entrance being incised by the laser beam, and an incision tunnel extending from the incision entrance toward the corneal stroma, the tip of the incision tunnel being connected to the flap surface, and wherein the tip of the incision tunnel is connected to an incision line of the flap surface, and reinforcement parts, which are regions to which no laser beam is applied, are formed on opposite sides of the tip of the incision tunnel in the incision line of the flap surface.