Mask configured to maintain nutrient transport without producing visible diffraction patterns
First Claim
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1. A mask configured to be implanted in a cornea of a patient to increase the depth of focus of the patient, the mask comprising:
- an anterior surface extending from an outer periphery and being configured to reside adjacent a first corneal layer;
a posterior surface extending from the outer periphery and being configured to reside adjacent a second corneal layer; and
an aperture located within the outer periphery;
a non-transmissive portion disposed about the aperture; and
a plurality of nutrient flow paths located in the non-transmissive portion and extending between the anterior surface and the posterior surface, the nutrient flow paths configured to reduce nutrient depletion due to the presence of the mask in at least one of the first corneal layer and the second corneal layer;
wherein non-transmissive portion prevents transmission of between about 85 and about 100 percent of incident light.
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Abstract
A mask configured to be implanted in a cornea of a patient to increase the depth of focus of the patient includes an anterior surface, a posterior surface, and a plurality of holes. The anterior surface is configured to reside adjacent a first corneal layer. The posterior surface is configured to reside adjacent a second corneal layer. The plurality of holes extends at least partially between the anterior surface and the posterior surface. The holes of the plurality of holes are configured to substantially eliminate visible diffraction patterns.
139 Citations
18 Claims
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1. A mask configured to be implanted in a cornea of a patient to increase the depth of focus of the patient, the mask comprising:
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an anterior surface extending from an outer periphery and being configured to reside adjacent a first corneal layer;
a posterior surface extending from the outer periphery and being configured to reside adjacent a second corneal layer; and
an aperture located within the outer periphery;
a non-transmissive portion disposed about the aperture; and
a plurality of nutrient flow paths located in the non-transmissive portion and extending between the anterior surface and the posterior surface, the nutrient flow paths configured to reduce nutrient depletion due to the presence of the mask in at least one of the first corneal layer and the second corneal layer;
wherein non-transmissive portion prevents transmission of between about 85 and about 100 percent of incident light. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A mask configured to be implanted in a cornea of a patient to increase the depth of focus of the patient, the mask comprising:
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an anterior surface extending from an outer periphery and being configured to reside adjacent a first corneal layer;
a posterior surface extending from the outer periphery and being configured to reside adjacent a second corneal layer; and
an aperture located within the outer periphery and extending between the anterior and posterior surfaces;
a light absorbing portion disposed about the aperture; and
a plurality of nutrient flow paths located in the light absorbing portion and extending between the anterior surface and the posterior surface configured to reduce nutrient depletion due to the presence of the mask in at least one of the first corneal layer and the second corneal layer;
wherein the transmission of incident light through the light absorbing portion is sufficiently low to produce a pinhole optical effect through the aperture. - View Dependent Claims (18)
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Specification