Positive power anterior chamber ocular implant
First Claim
1. A positive power anterior chamber ocular implant for placement in the anterior chamber of a phakic eye comprising a positive artificial refracting lens having at least one convex surface and a means for positioning the lens in the anterior chamber of the eye, wherein contact between the positive refracting lens and other anatomic bodies is avoided, wherein the means for positioning avoids contact with the iris and corneal endothelium;
- wherein said means for positioning the positive refracting lens comprises two haptics providing a four-point attachment, each haptic having an “
S”
configuration with a smooth transition portion extending normal to a peripheral edge of the lens, an intermediate beam extending from the transition portion and having a length of approximately 5.25 mm, and a concavely curved outer portion extending from the intermediate beam, wherein each haptic has a thickness in the range of 0.25 mm to 0.35 mm at the point of attachment to said lens.
6 Assignments
0 Petitions
Accused Products
Abstract
A positive power anterior chamber ocular implant for placement in a phakic eye is disclosed to correct refractive errors caused by hyperopia which includes at least one convex surface and haptics for positioning the lens in the anterior chamber of the eye. Contact between the lens and other anatomic bodies, such as the anatomical lens, the corneal endothelium and iris is avoided, and the haptics avoid contact with the iris.
85 Citations
30 Claims
-
1. A positive power anterior chamber ocular implant for placement in the anterior chamber of a phakic eye comprising a positive artificial refracting lens having at least one convex surface and a means for positioning the lens in the anterior chamber of the eye, wherein contact between the positive refracting lens and other anatomic bodies is avoided, wherein the means for positioning avoids contact with the iris and corneal endothelium;
wherein said means for positioning the positive refracting lens comprises two haptics providing a four-point attachment, each haptic having an “
S”
configuration with a smooth transition portion extending normal to a peripheral edge of the lens, an intermediate beam extending from the transition portion and having a length of approximately 5.25 mm, and a concavely curved outer portion extending from the intermediate beam, wherein each haptic has a thickness in the range of 0.25 mm to 0.35 mm at the point of attachment to said lens.- View Dependent Claims (2, 3, 4, 5, 6)
-
7. An ocular implant comprising:
-
an optic lens having an anterior surface, a posterior surface, and a peripheral edge between the anterior surface and the posterior surface; two haptics affixed to said lens, each said haptic having a generally “
S”
-shaped configuration with a smooth transition portion extending normal to the peripheral edge of the lens, an intermediate beam, having a length of about 5.25 mm, extending from the transition portion, and a concavely curved outer portion extending from the intermediate beam to define a first attachment point at the juncture of the intermediate beam and the outer portion, and a second attachment point at a distal end of the outer portion. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
-
21. A positive power anterior chamber ocular implant for placement in the anterior chamber of a phakic eye, said ocular implant comprising a lens having an anterior surface, a posterior surface, and a peripheral edge between the anterior surface and the posterior surface, at least one of the anterior surface and the posterior surface being convex, said ocular implant further comprising a pair of haptics attached to said lens, said pair of haptics providing a four-point attachment wherein each haptic has a generally “
- S”
-shaped configuration with a smooth transition portion extending normal to the peripheral edge of the lens, an intermediate beam, having a length of about 5.25 mm, extending from the transition portion, and a concavely curved outer portion extending from the intermediate beam to define a first attachment point at the juncture of the intermediate beam and the outer portion, and a second attachment point at a distal end of the outer portion. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
- S”
Specification