System and method for increasing the depth of focus of the human eye
4 Assignments
0 Petitions
Accused Products
Abstract
A method and apparatus for increasing the depth of focus of the human eye is comprised of a lens body, an optic in the lens body configured to produce light interference, and a pinhole-like optical aperture substantially in the center of the optic. The optic may be configured to produce light scattering or composed of a light reflective material. Alternatively, the optic may increase the depth of focus via a combination of light interference, light scattering, light reflection and/or light absorption. The optic may also be configured as a series of concentric circles, a weave, a pattern of particles, or a pattern of curvatures. One method involves screening a patient for an ophthalmic lens using a pinhole screening device in the lens to increase the patient'"'"'s depth of focus. Another method comprises surgically implanting a mask in the patient'"'"'s eye to increase the depth of focus.
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Citations
42 Claims
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1-20. -20. (canceled)
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21. An ophthalmic device, comprising:
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a pinhole-like optical aperture for increasing depth of field;
an optic comprising a peripheral portion of the ophthalmic device, the optic comprising;
an anterior surface configured to reside adjacent to a first corneal layer;
a posterior surface configured to reside adjacent to a second corneal layer; and
a structure surrounding a plurality of small holes disposed in the peripheral portion of the ophthalmic device, the structure comprising a material configured to prevent transmission of a substantial portion of light incident on the anterior surface; and
a lens body having an optical power for vision correction - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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42. An ophthalmic device, comprising:
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a lens body having an optical power for vision correction; and
an optic comprising a peripheral portion of the ophthalmic device, the optic comprising;
an anterior surface configured to reside adjacent to a first corneal layer;
a posterior surface configured to reside adjacent to a second corneal layer; and
a structure surrounding a plurality of small holes disposed in the peripheral portion of the ophthalmic device, the structure comprising a material configured to prevent transmission of a substantial portion of light incident on the anterior surface;
wherein the ophthalmic device is configured to transmit light at a central portion thereof whereby depth of field is increased.
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Specification