Patent ID: 11903878
Assignee: AMO DEVELOPMENT, LLC
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A method implemented in an ophthalmic surgical laser system for incising a cornea of a patient's eye to form a corneal flap, the method comprising:
controlling a laser delivery system of the ophthalmic surgical laser system to deliver a pulsed laser beam to the cornea;
controlling a high frequency scanner of the ophthalmic surgical laser system to scan the pulsed laser beam back and forth to form a laser scan line; and
controlling a scan line rotator, an XY-scanner and a Z-scanner of the ophthalmic surgical laser system to move the laser scan line in the cornea to form the corneal flap, including forming a pocket cut, forming a bed of the flap, and forming a side cut of the flap,
wherein the bed is located in a horizontal plane at a first depth from an anterior corneal surface, the bed defining a hinge line,
wherein the side cut extends from the bed upwards to the anterior corneal surface to form a side of the flap, the side cut surrounding an entire periphery of the bed except the hinge line,
wherein the pocket cut includes a ramp region and a pocket region connected to each other, wherein the pocket region is located at a second depth from the anterior corneal surface which is deeper than the first depth, wherein the pocked region has a shape of a rectangle, or multiple rectangles joined to each other, or a segment of a ring in a top view, and wherein the ramp region extends between the first depth and the second depth and is connected to both the bed and the pocket region, and
wherein the pocket cut is formed first, the bed is formed after the pocket cut, and the side cut is formed after the bed.