Patent ID: 8348425

Claim:
A method for providing an eye of a particular patient with an extended depth of focus, the method comprising: inputting a patient parameter specific for the particular patient; determining an optical surface shape for the particular patient using the patient parameter specific for the particular patient with a compound modulation transfer function (CMTF), the compound modulation transfer function comprising a combination of modulation transfer functions (MTF's) at a plurality of distinct frequencies; and extending the depth of focus of the eye of the particular patient by administering to the patient a procedure selected from the group consisting of: ablating a cornea of the eye of the particular patient to provide a corneal surface shape that corresponds to the optical surface shape, providing the patient with a contact lens or spectacle lens that has a shape that corresponds to the optical surface shape, and providing the patient with an intra-ocular lens that has a shape that corresponds to the optical surface shape.