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

Claim 15:
16. 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 bed of the flap and forming a side cut of the flap,
wherein the bed is located in a horizontal plane parallel to an anterior corneal surface of the cornea, wherein the side cut extends from the bed upwards to the anterior corneal surface to form a side of the flap,
wherein the step of forming the side cut includes forming a plurality of side cut layers in a sequence, each side cut layer extending within a depth range from the anterior corneal surface, wherein all except one of the plurality of side cut layers are located entirely within the cornea without reaching the anterior corneal surface, and wherein the plurality of side cut layers are aligned with each other and connect with each other to form the side cut, and
wherein the plurality of side cut layers are formed in a sequence from deeper side cut layers to shallower side cut layers.