Corneal optic formed of degradation resistant polymer
AssigneeAcuFocus, Inc.
InventorThomas Silvestrini
Life of this patent
Estimating the term…
Abstract
Disclosed are mask optics configured to be implanted in a cornea of a patient. In one embodiment, the body of the optic has a light transmitting portion, a light blocking portion disposed about the light transmitting portion, and an outer periphery surrounding the light blocking portion. The optic is adapted to reside between two intracorneal layers of a cornea. The mask optic may be formed from a material comprising a highly fluorinated polymeric material and an opacification agent. Preferred highly fluorinated polymeric materials include polyvinylidene fluoride (PVDF) and preferred opacification agents include carbon. The highly fluorinated polymeric material is preferably resistant to degradation upon exposure to ultraviolet light.
Claims36
A mask optic configured to be implanted in a cornea of a patient, the mask optic comprising:
- a body formed from a material comprising a highly fluorinated polymeric material, the body having a light transmitting portion, a light blocking portion disposed about the light transmitting portion, and outer periphery surrounding the light blocking portion, an anterior surface, and a posterior surface, the anterior surface configured to reside adjacent a first intracorneal layer, the posterior surface configured to reside adjacent a second intracorneal layer, wherein the number of carbon-fluorine bonds in the highly fluorinated polymeric material equals or exceeds the number of carbon-hydrogen bonds.
A mask optic comprising:
- an aperture having a major axis of about 2.2 mm or less;
- and
- an annular body extending between the aperture and an outer periphery of the mask, the annular body having an anterior surface and a posterior surface, the annular body being formed of a material comprising a highly fluorinated polymeric material and an opacification agent, the opacification agent being present in sufficient quantity to prevent at least a substantial portion of light incident on the anterior surface from being transmitted from the anterior surface to the posterior surface.
Dependencies are inferred from the claim text.