Ocular implant iris diaphragm
An ocular implant alters iris color for medical and cosmetic purposes and is made of an inert, nontoxic, foldable and preferably permeable to fluid flow material. It is an annular non-planar structure that fits over the iris yet leaves the natural lens uncovered and extends approximately to the iridocorneal angle. Two different kinds of arc sections of a non-uniform thickness make up the structure: passage arc sections and support arc sections. The passage arc sections permit humor aqueous flow under the implant. The support arc sections make contact with the iris and provide the necessary support for the passage arc sections. Auricles extend from the support arc sections and are configured to hold the implant in place by engaging the eye at the iridocorneal angle. The implant may include an artificial lens and preferably spurs on the support arc sections to anchor for the artificial lens.
1. An implant for an eye, the eye comprising an anterior chamber, an iridocorneal angle, a natural lens, and an iris, the implant configured to extend over the iris within the anterior chamber to alter iris color for medical and cosmetic, purposes, the implant comprising:
a material that is inert, nontoxic and foldable, the material configured to define an annular non-planar structure with a central opening and a periphery,
the annular non-planar structure configured to leave the natural lens uncovered and further configured to extend approximately to the iridocorneal angle when implanted in the eye atop the iris;
the annular non-planar structure comprising a plurality of arc sections, the arc sections comprising support arc sections of a non-uniform thickness that diminishes from the central opening to the periphery and passage arc sections, wherein each arc section comprises a top surface and a bottom surface,
the arc sections configured, when implanted in the eye atop the iris, to define:
passages for humor aqueous flow under the implant formed by passage arc sections that sit a distance above the iris; and,
a support structure for the passages formed by support arc sections that are in contact with the iris; and,
auricles extending from the support arc sections and configured to hold the implant in place by engaging the eye at the iridocorneal angle.
2. The implant of claim 1 , wherein the material is configured to define a plurality of microscopic holes to render the material permeable to fluid within the eye.
3. The implant of claim 1 , further comprising a spur rising from a support arc section away from the iris when implanted in the eye and configured to provide an anchor point for an artificial lens spanning the natural lens atop the implant.
4. The implant of claim 3 , wherein the spur comprises an open angle shape.
5. The implant of claim 3 , wherein the spur comprises a closed loop shape.
6. The implant of claim 3 , further comprising an artificial lens comprising a haptic configured to engage the spur to hold the artificial lens in position and to elevate the artificial lens off the top surface of the arc sections.
7. The implant of claim 6 , wherein the haptic is configured with a closed hole.
8. The implant of claim 6 , wherein the haptic is configured with a pincer.
9. The implant of claim 1 , further comprising an artificial lens configured to cover the natural lens when the implant is in the eye atop the iris.