Corneal Implant Systems and Methods
According to one aspect of the present disclosure, an implant for correcting vision impairment is disclosed. The implant is made from a donor corneal tissue sized and shaped to provide a predetermined refractive correction and reshaping of a cornea. The donor corneal tissue includes a posterior surface and an anterior surface. The posterior surface has a surface profile that is configured to generally correspond to a shape of an implantation site of the cornea.
1 . A method of making an implant for correcting vision impairment, comprising:
receiving a donor corneal tissue, the donor corneal tissue including stromal tissue between an anterior surface and a posterior surface;
cutting a plurality of lamellar sheets from the stromal tissue, wherein cuts are made between the posterior surface and the anterior surface and parallel to the posterior surface or the anterior surface to define surfaces of the lamellar sheets, and the lamellar sheets are defined by lamellar layers in the stromal tissue, parallel to the posterior surface or the anterior surface;
cutting a plurality of lenticules from the lamellar sheets; and
selecting at least one of the lenticules to be reshaped to form an implant having a shape and size configured for a predetermined refractive correction.