Methods And Devices For Refractive Treatments Of Presbyopia
OwnerJunzhong Lianginventor
Life of this patent
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Abstract
Presbyopia in a patient's eye is treated by inducing spherical aberration in the central section of the pupil, while the peripheral section of the pupil is treated in a manner other than the central section of the pupil. For example, the peripheral section of the pupil may remain untreated, or high-order aberration may be controlled, and/or a second area of spherical aberration may be provided with different focus power.
Claims17
-33. (canceled)
A method of treatment for presbyopia of an eye, wherein the eye has a natural pupil that comprises (a) a central pupil section at equal or less than 4 mm in diameter and (b) a surrounding periphery pupil section for receiving light at low-light conditions, the method comprising the steps of:
- inducing spherical aberration in the central pupil section;
- and
- preserving or reducing high-order aberrations in the periphery pupil section, the high-order aberrations being present prior to the treatment;
- wherein the spherical aberration is represented by a polynomial term and a change in refractive power of the eye occurs at an interface between the central pupil section and the periphery pupil section.
-49. (canceled)
A method of treatment for presbyopia of an eye, wherein the eye has a natural pupil including, (a) a central pupil section at equal or less than 4 mm in diameter and (b) a surrounding periphery pupil section for receiving light during low-light conditions, the method comprising the steps of:
- producing a first set of focus power and spherical aberration in the central pupil section;
- and
- producing a second set of focus power and spherical aberration in the periphery pupil section;
- wherein the first and second sets of focus power and spherical aberration create a change in refractive power at the interface between the central pupil section and the periphery pupil section.
-66. (canceled)
Dependencies are inferred from the claim text.