Patent ID: 8529557

Claim:
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 c ” equal to approximately 10 mm, wherein the contact surface is engaged with the anterior surface of the eye, wherein the anterior surface of the eye has a radius of curvature “R” equal to approximately 7.8 mm and the contact lens is positioned thereon to introduce a predetermined deformation of the cornea; 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 c , and to compensate for refraction with an angle φ, with φ equal to arc sin s/ 20 ; and 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.