Compound modulation transfer function for laser surgery and other optical applications
AssigneeAMO Manufacturing USA, LLC
InventorsGuangming Dai, Kingman Yee
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.
Claims24
A method for treating or mitigating a vision condition of an eye in a particular patient, the method comprising:
- selecting a gauge of optical quality appropriate for the vision condition of the eye;
- 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
- 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 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;
- wherein the gauge of optical quality comprises a compound modulation transfer function (CMTF) parameter.
A method of evaluating the effectiveness of a refractive correction administered to treat a vision condition of an eye of a particular patient, comprising:
- inputting a patient parameter specific for the particular patient;
- and
- evaluating the effectiveness of the administered refractive correction using the patient parameter specific for the 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.
A method of predicting the effectiveness of a refractive correction proposed to treat a vision condition of an eye of a particular patient, comprising:
- inputting a patient parameter specific for the particular patient;
- and
- predicting the effectiveness of the proposed refractive correction using the patient parameter specific for the 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.
Dependencies are inferred from the claim text.