Patent ID: 6789544
Filing Date: 2004-09-14
Classification: A61F

Abstract:
A method of performing a penetrating keratoplasty in a living eye, the method comprising:providing a full-thickness circular corneal graft obtained from a corneal donor and having a step-like edge-to-edge lateral profile with a diameter of its posterior surface being larger than a diameter of its anterior surface; preparing a full-thickness open recipient bed in a recipient's cornea so as to be essentially complementary to the donor corneal graft; positioning the full-thickness corneal graft in the full-thickness open bed; securing the graft with a suture solely to prevent the graft from sliding out of position, the suture being lax enough to induce a post-operation astigmatic error not higher than 4 dioptres; and removing the suture not later than three months from surgery.