Compound modulation transfer function for laser surgery and other optical applications
AssigneeAMO Manufacturing USA, LLC
InventorGuang-ming Dai
Life of this patent
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Abstract
Methods, devices, and systems establish an optical surface shape that mitigates or treats a vision condition in a patient. An optical surface shape for a particular patient can be determined using a set of patient parameters for the specific patient by using a compound modulation transfer function (CMTF). The compound modulation transfer function can include a combination of modulation transfer functions (MTF's) at a plurality of distinct frequencies.
Claims20
A system for establishing an optical surface shape that mitigates or treats a vision condition of an eye in a particular patient, the system comprising:
- an input that accepts a set of patient parameters;
- and
- a module comprising a tangible non-transitory medium embodying machine-readable code that determines an optical surface shape for the particular patient based on the set of patient parameters, using a composite optical metric,
- wherein the composite optical metric comprises a first compound modulation transfer function (CMTF) parameter and a second parameter, the first parameter based on a CMTF comprising a combination of modulation transfer functions (MTF's) at a plurality of distinct frequencies.
A method for treating or mitigating a vision condition of an eye in a particular patient, 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 composite optical metric;
- and
- mitigating or treating the vision condition of the eye in the patient by administering to the patient a procedure selected from the group consisting of:
- ablating a corneal surface of the patient to provide a corneal surface shape that corresponds to the optical surface shape, providing the patient with a contact lens or spectacle lens having a shape that corresponds to the optical surface shape, and providing the patient with an intra-ocular lens having a shape that corresponds to the optical surface shape;
- wherein the composite optical metric comprises a first compound modulation transfer function (CMTF) parameter and a second parameter, the first parameter based on a CMTF comprising a combination of modulation transfer functions (MTF's) at a plurality of distinct frequencies.
A system for evaluating the optical quality of an optical system of a patient, comprising:
- an input that accepts a set of parameters associated with the patient;
- and
- a module comprising a tangible non-transitory medium embodying machine-readable code that evaluates the optical quality of the optical system of the patient based on the set of parameters using a composite optical metric,
- wherein the composite optical metric comprises a first compound modulation transfer function (CMTF) parameter and a second parameter, the first parameter based on a CMTF comprising a combination of modulation transfer functions (MTF's) at a plurality of distinct frequencies.
Dependencies are inferred from the claim text.