Methods of correcting vision
Methods of correcting vision for presbyopia, including remodeling a stroma with a laser to create an intracorneal shape, where the corneal shape includes a central region with a thickness that is about 50 microns or less measured from an extension of a shape of a peripheral region of the corneal shape, wherein remodeling a portion of the stroma increases a curvature of a central portion of the anterior surface of the cornea with a central elevation change for near vision.
1. A method of correcting vision for presbyopia, comprising:
creating a lenticule in a stroma of a cornea, wherein creating the lenticule includes creating an anterior lenticule incision and a posterior lenticule incision with a femtosecond laser, wherein the posterior lenticule incision has a central region and a peripheral region, the central region having increased curvature relative to the peripheral region; and
removing the lenticule from the stroma, wherein removing the lenticule increases the curvature of a central portion of an anterior surface of the cornea with a central elevation change for near vision,
wherein removing the lenticule creates a central corneal bump with a thickness that is 3-7 times the central elevation change in the anterior surface of the cornea.
2. The method of claim 1 wherein creating the anterior lenticule incision comprises creating the anterior lenticule incision between 5 microns and 250 microns deep in the stroma.
3. The method of claim 1 wherein removing the lenticule comprises creating a corneal flap.
4. The method of claim 1 wherein the method of correcting vision does not include creating a corneal flap.
5. The method of claim 1 , wherein removing the lenticule also treats myopia by flattening the cornea in a peripheral portion that is peripheral to the central portion.