US 12,201,560 B2
Femtosecond laser system and methods for photorefractive keratectomy
Dimitri A. Chernyak, Belmont, MA (US)
Assigned to AMO Development, LLC, Irvine, CA (US)
Filed by AMO DEVELOPMENT, LLC, Irvine, CA (US)
Filed on Dec. 9, 2022, as Appl. No. 18/064,194.
Application 18/064,194 is a division of application No. 15/795,124, filed on Oct. 26, 2017, granted, now 11,529,259.
Prior Publication US 2023/0106593 A1, Apr. 6, 2023
Int. Cl. A61F 9/008 (2006.01)
CPC A61F 9/00827 (2013.01) [A61F 9/0084 (2013.01); A61F 9/00836 (2013.01); A61F 2009/00846 (2013.01); A61F 2009/00848 (2013.01); A61F 2009/00851 (2013.01); A61F 2009/00853 (2013.01); A61F 2009/0087 (2013.01); A61F 2009/00872 (2013.01); A61F 2009/00897 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method for performing a photorefractive keratectomy procedure in an eye of a patient, the system comprising:
generating a femtosecond pulsed laser beam; and
deflecting the laser beam in an incision scanning pattern which includes an epithelial incision portion that transects an epithelium layer of a cornea of the eye and a stromal incision portion located in a stromal layer of the cornea to form a lenticule, wherein the lenticule is defined by an anterior surface of the cornea, the epithelial incision portion and the stromal incision portion and is separated from underlying and surrounding portions of the cornea, wherein the stromal incision portion is curved, and the stromal incision portion and the epithelial incision portion intersect at an angle relative to each other, and wherein the lenticule comprises both a stromal portion shaped to affect a refractive property of the eye and an epithelial portion overlaying the stromal portion.