PREFORMED LENS SYSTEMS AND METHODS

摘要

Systems, methods, computer program products, and kits involving deformation mechanisms are provided for the removal of corneal tissue in optical vision treatments. According to exemplary embodiments, deformation mechanisms may be used in combination with the administration of femtosecond photoalteration lasers to create or define volumetric tissue portions for such removal.

主权项

1. A method of providing a surgical treatment to an eye of a patient, the method comprising:
positioning a corneal deformation mechanism against an anterior surface of the eye of the patient, so as to induce a first intended biomechanical conformation within a corneal stromal tissue of the eye; delivering a first photoaltering energy protocol to the eye while the corneal stromal tissue is in the first intended biomechanical conformation, so as to incise the corneal stromal tissue along a first target surface; positioning the corneal deformation mechanism against the anterior surface of the eye of the patient, such that the corneal stromal tissue of the eye assumes a second intended biomechanical conformation different from the first intended biomechanical conformation; delivering a second photoaltering energy protocol to the eye while the corneal stromal tissue is in the second intended biomechanical conformation, so as to incise the corneal stromal tissue along a second target surface different from the first target surface; and removing a portion of corneal stromal tissue bounded by the first and second target surfaces, wherein the corneal deformation mechanism comprises an applanation assembly that provides a first shape configuration and a second shape configuration, such that when in the first shape configuration, the applanation assembly is shaped to induce the first intended biomechanical conformation within the corneal stromal tissue, and when in the second shape configuration, the applanation assembly is shaped to induce the second intended biomechanical conformation within the corneal stromal tissue.