Method and apparatus for reducing or eliminating the progression of myopia
AssigneeSynergeyes, Inc.
InventorJerome Legerton
Life of this patent
Estimating the term…
Abstract
Apparatus and methods are provided for reducing or eliminating the progression of myopia, including a lens having an intentionally created aberration pattern for reducing or eliminating the progression of myopia. The aberration pattern may comprise a positive spherical aberration that produces a wavefront error in which the paracentral wavefront is disposed in front of the retina, thereby producing a signal that counters axial length growth of the eye and preventing the progression of myopia.
Claims21
Apparatus for reducing or eliminating the progression of myopia in a myopic eye, comprising:
- a lens having a predetermined aberration pattern for reducing the progression of myopia in the eye,
- wherein the predetermined aberration pattern comprises a positive spherical aberration of a predetermined amount.
A method of creating a lens for a lens-eye system including a myopic eye, the method comprising the steps of:
- measuring the residual aberrations in the eye using a diagnostic lens;
- and
- inducing a predetermined aberration pattern in the lens-eye system, thereby reducing the progression of myopia in the eye.
A method of prescribing and fitting a contact lens for an eye, comprising the steps of:
- measuring an ocular surface profile of the fitting lens, a thickness profile of the fitting lens, and low and higher order aberrations of the fitting lens;
- selecting a fitting lens to conform to the shape of a cornea of the eye;
- placing the fitting lens in the eye and measuring the registration error and the residual low and higher order aberrations of the lens-eye system;
- and
- performing an analysis utilizing the measured ocular surface profile of the fitting lens, the measured thickness profile of the fitting lens, the measured low and higher aberrations of the fitting lens, and the registration error and the residual low and higher order aberrations of the lens-eye system.
A method of prescribing and fitting a contact lens for an eye, comprising the steps of:
- selecting a fitting lens to conform to the shape of a cornea of the eye;
- measuring the registration error and the residual low and higher order aberrations of the lens-eye system;
- and
- performing an analysis utilizing the registration error and the residual low and higher order aberrations of the lens-eye system to determine a preferred aberration prescription for the contact lens.
A method of screening a patient's eye to determine the probability of the eye becoming highly myopic, comprising the steps of:
- performing aberrometry of the eye to determine an amount of existing spherical aberration;
- measuring an amount of existing hysteresis in the eye;
- and
- using the determined amount of existing spherical aberration and hysteresis in the eye to determine the probability of the eye becoming highly myopic.
Dependencies are inferred from the claim text.