Transformation methods of wavefront maps from one vertex distance to another
AssigneeAMO Manufacturing USA, LLC
InventorGuangming Dai
Life of this patent
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Abstract
The present invention provides methods, systems and software for scaling optical aberration measurements of optical systems. In one embodiment, the present invention provides a method of reconstructing optical tissues of an eye. The method comprises transmitting an image through the optical tissues of the eye. Aberration data from the transmitted image is measured across the optical tissues of the eye at a first plane. A conversion algorithm is applied to the data, converting it to corrective optical power data that can be used as a basis for constructing a treatment for the eye at a second plane.
Claims23
A method of determining a refractive treatment shape for ameliorating a vision condition in a patient, the method comprising:
- measuring a wavefront aberration of an eye of the patient, the wavefront aberration corresponding to a measurement surface that is disposed at or near a pupil plane of the eye, to provide a measurement surface aberration;
- deriving a treatment surface aberration of the eye, the treatment surface aberration corresponding to a treatment surface of the eye, the treatment surface aberration derived from the measurement surface aberration using a difference between the measurement surface and the treatment surface;
- and
- determining the refractive treatment shape based on the treatment surface aberration of the eye,
- wherein the measurement surface aberration reflects low order and high order aberrations of the eye of the patient.
A method of ameliorating a vision condition in a patient, the method comprising:
- measuring a wavefront aberration of an eye of the patient, the wavefront aberration corresponding to a measurement surface that is disposed at or near a pupil plane of the eye, to provide a measurement surface aberration;
- deriving a treatment surface aberration of the eye, the treatment surface aberration corresponding to a treatment surface of the eye, the treatment surface aberration derived from the measurement surface aberration using a difference between the measurement surface and the treatment surface;
- determining a refractive treatment shape based on the treatment surface aberration of the eye;
- and
- applying the refractive treatment shape to the eye of the patient to ameliorate the vision condition,
- wherein the measurement surface aberration reflects low order and high order aberrations of the eye of the patient.
A system for generating a refractive treatment shape for ameliorating a vision condition in an eye of a patient, the system comprising:
- an input module that accepts a measurement surface aberration, the measurement surface aberration based on a wavefront aberration the eye, the wavefront aberration corresponding to a measurement surface that is disposed at or near a pupil plane of the eye;
- a transformation module that derives a treatment surface aberration, the treatment surface aberration corresponding to a treatment surface of the eye, the treatment surface aberration derived from the measurement surface aberration using a difference between the measurement surface and the treatment surface;
- and
- an output module that generates the refractive treatment shape based on the treatment surface aberration,
- wherein the measurement surface aberration reflects low order and high order aberrations of the eye of the patient.
A system for ameliorating a vision condition in an eye of a patient, the system comprising:
- an input module that accepts a measurement surface aberration, the measurement surface aberration based on a wavefront aberration of the eye, the wavefront aberration corresponding to a measurement surface that is disposed at or near a pupil plane of the eye;
- a transformation module that derives a treatment surface aberration, the treatment surface aberration corresponding to a treatment surface that is disposed at or near an anterior surface of a cornea of the eye, the treatment surface aberration derived from the measurement surface aberration using a difference between the measurement surface and the treatment surface;
- an output module that generates the refractive treatment shape based on the treatment surface aberration;
- and
- a laser system that directs laser energy onto the eye according to the refractive treatment shape so as to reprofile a surface of the eye from an initial shape to a subsequent shape, the subsequent shape having correctively improved optical properties for ameliorating the vision condition,
- wherein the measurement surface aberration reflects low order and high order aberrations of the eye of the patient.
A system for generating a prescription for ameliorating a vision condition in an eye of a patient, the system comprising:
- an input that accepts irregular aberration data, the irregular aberration data corresponding to an aberration measurement surface adjacent a pupil plane of the eye;
- a transformation module that derives a treatment surface aberration, the treatment surface aberration corresponding to a treatment surface that is disposed adjacent an anterior surface of a cornea of the eye, the treatment surface aberration derived from the irregular aberration data using a difference between the measurement surface and the treatment surface;
- and
- an output module that generates the prescription based on the treatment surface aberration,
- wherein the irregular aberration data reflects low order and high order aberrations of the eye of the patient.
Dependencies are inferred from the claim text.