Patent ID: 8529557
Filing Date: 2013-09-10
Classification: A61F

Abstract:
1. A system for minimizing stray light caused by the creation of surfaces in intrastromal tissue of a cornea of an eye of a patient which comprises: a contact lens having a contact surface having a radius of curvature “R a laser unit for directing a laser beam through the contact lens to alter corneal tissue over at least a portion of a cutting conical surface in the cornea, with the cutting conical surface having an increasing taper in a posterior direction along the visual axis of the eye, and wherein a reference point is selected on the anterior surface of the eye at a radial distance “s” from the visual axis, and wherein the cutting conical surface is inclined to compensate for the predetermined deformation with an induced deformation angle Ψ, with Ψ equal to arc sin s/R minus arc sin s/R a means for removing the contact lens from the eye for recovery of the eye from the deformation caused by the contact lens, with a consequent transition from the cutting conical surface to a refraction conical surface, where the induced deformation angle Ψ becomes effectively zero to minimize an introduction of stray light into the vision of the patient.