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US 2012/0239144 A1Published application
Aberration-Correcting Vision Prosthesis
AssigneeMassachusetts Eye and Ear Infirmary
InventorDimitri T. Azar
Life of this patent
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Abstract
A vision prosthesis includes an optical element having a characteristic function associated with refraction therethrough. The characteristic function is selected to reduce aberration in an eye when the optical element is implanted at a location therein.
Claims16
A method, comprising:
- implanting an optical element into an eye;
- measuring aberration in the eye when the optical element is implanted in the eye;
- selecting a high-order aberration correction, represented by wavefront data determined based on the measured aberration, to modify a characteristic function associated with refraction through the optical element to reduce high-order aberration in the eye when the optical element is implanted at a location therein;
- incorporating into the wavefront data dependence of the high-order aberration correction on an estimate of a distance to an object-of-regard based on predicted changes to optical path lengths in the eye that occur during accommodation;
- and
- applying the high-order aberration correction to the optical element.
3 more elements
A vision prosthesis for implantation in an eye, the vision prosthesis comprising:
- an optical element having a characteristic function associated with refraction therethrough;
- and
- a memory element that stores wavefront data representing a high-order aberration correction selected based on aberration in the eye that was measured when the optical element was implanted in the eye, the high-order aberration correction being selected to modify the characteristic function associated with refraction through the optical element to reduce high-order aberration in the eye when the optical element is implanted at a location therein;
- a range-finder configured to provide an estimate of a distance to an object-of-regard;
- and
- an actuator configured to apply the high-order aberration correction to the optical element;
- wherein the wavefront data incorporates dependence of the high-order aberration correction on the estimate based on predicted changes to optical path lengths in the eye that occur during accommodation.
4 more elements
Dependencies are inferred from the claim text.