Abstract: A high refractive index, foldable polymer suitable for use in ophthalmic devices, such as intraocular lenses, is provided. The polymer may be produced from a polymerization reaction of first, second and third monomeric components and a crosslinking agent. The first monomeric component includes an aryl acrylate or an aryl methacrylate. The second monomeric component, which is not an acrylate, includes a monomer having an aromatic ring with a substituent having at least one site of ethylenic unsaturation. The third monomeric component includes a high water content hydrogel-forming monomer. The resulting high refractive index copolymer is durable enough to be cut and polished when dry, and becomes soft and foldable when hydrated.

Abstract: A high refractive index, foldable polymer suitable for use in ophthalmic devices, such as intraocular lenses, is provided. The polymer may be produced from a polymerization reaction of first, second and third monomeric components and a crosslinking agent. The first monomeric component includes an aryl acrylate or an aryl methacrylate. The second monomeric component, which is not an acrylate, includes a monomer having an aromatic ring with a substituent having at least one site of ethylenic unsaturation. The third monomeric component includes a high water content hydrogel-forming monomer. The resulting high refractive index copolymer is durable enough to be cut and polished when dry, and becomes soft and foldable when hydrated.

Abstract: A high refractive index, foldable polymer suitable for use in ophthalmic devices, such as intraocular lenses, is provided. The polymer may be produced from a polymerization reaction of first, second and third monomeric components and a crosslinking agent. The first monomeric component includes an aryl acrylate or an aryl methacrylate. The second monomeric component, which is not an acrylate, includes a monomer having an aromatic ring with a substituent having at least one site of ethylenic unsaturation. The third monomeric component includes a high water content hydrogel-forming monomer. The resulting high refractive index copolymer is durable enough to be cut and polished when dry, and becomes soft and foldable when hydrated.

Abstract: A high refractive index, foldable polymer suitable for use in ophthalmic devices, such as intraocular lenses, is provided. The polymer may be produced from a polymerization reaction of first, second and third monomeric components and a crosslinking agent. The first monomeric component includes an aryl acrylate or an aryl methacrylate. The second monomeric component, which is not an acrylate, includes a monomer having an aromatic ring with a substituent having at least one site of ethylenic unsaturation. The third monomeric component includes a high water content hydrogel-forming monomer. The resulting high refractive index copolymer is durable enough to be cut and polished when dry, and becomes soft and foldable when hydrated.

Abstract: A high refractive index, foldable polymer suitable for use in ophthalmic devices, such as intraocular lenses, is provided. The polymer may be produced from a polymerization reaction of first, second and third monomeric components and a crosslinking agent. The first monomeric component includes an aryl acrylate or an aryl methacrylate. The second monomeric component, which is not an acrylate, includes a monomer having an aromatic ring with a substituent having at least one site of ethylenic unsaturation. The third monomeric component includes a high water content hydrogel-forming monomer. The resulting high refractive index copolymer is durable enough to be cut and polished when dry, and becomes soft and foldable when hydrated.

Abstract: A high refractive index, foldable polymer suitable for use in ophthalmic devices, such as intraocular lenses, is provided. The polymer may be produced from a polymerization reaction of first, second and third monomeric components and a crosslinking agent. The first monomeric component includes an aryl acrylate or an aryl methacrylate. The second monomeric component, which is not an acrylate, includes a monomer having an aromatic ring with a substituent having at least one site of ethylenic unsaturation. The third monomeric component includes a high water content hydrogel-forming monomer. The resulting high refractive index copolymer is durable enough to be cut and polished when dry, and becomes soft and foldable when hydrated.

Abstract: An intraocular lens for placement in a capsular bag, including a small hard inner lens optic and a soft pliable skirt surrounding the lens optic. The lens optic can be meniscus, bi-convex, plano convex, or the reverse lens optic. The lens optic is a high refractive index material and has a diameter of about 2-4 mm. The soft pliable skirt secures to an edge of the lens optic and extends away at a downwardly sloping angle. The outer diameter of the lens skirt can be up to 8-9 mm.

Abstract: Low power peristaltic medicine pump and filter for infusion of medicinal solutions. The pump includes a pump housing, a low durometer PVC pump tube; fit within an interior circular groove of the pump housing, tube slots, a rotor cavity within the walls of the pump housing bearing hole and recessed motor mounting body holes. A sealed geared motor in a motor recess in the bottom of the pump housing and a shaft and drive pin extend from the motor through a bearing hole in the pump housing to drive a pump rotor. Rotor mounted plungers offset at an angle to the radii of the pump rotor body to minimize internal friction for low power consumption and are spring loaded outwardly to depress plunger mounted rollers against the PVC pump tubing for subsequent peristalic pumping action through an inset PVC pump tube. A knurled knob loading tool positions on the pump rotor. Feed fingers attached to a circular plate on the loading tool facilitate loading of the PVC pump tube into the inner groove of the pump housing.

Abstract: A colored ringed or rimmed edge intraocular lens for implant in either the anterior chamber, the posterior chamber or the cornea of the eye. The lens has a colorless or clear central region of a material such as polymethylmethacrylate (PMMA) and a peripheral surrounding portion of a dark material such as blue PMMA. Polysulfone can also be utilized. The lens can be fabricated by passing a clear rod of optical quality PMMA through an extrusion orifice and coating the circumference of the rod with a layer of predetermined thickness of colored, preferably blue PMMA or other compatible material. Other methods of fabrication can include the introduction of a suitable dye into the outer regions of the rod, or joining the clear central region to a ring of colored material by thermal or adhesive bonding or other known processes.

Abstract: Intraocular lens including a meniscus lens optic with a convex anterior surface, a concave posterior surface and a double barrier ledge. The double barrier ledge includes an interrupting channel. A plurality of loops, such as continuously curved J-shaped blue loops, secure at an angle of 0.degree.-10.degree. to the plane of the optic. The double barrier ledge, including the U-shaped channel or other geometrically configured channel between the two ledges, provides a double barrier ledge like seal around the posterior capsule of the eye holding back migration of the cortical epithelium. The double barrier ledge causes a seal which prevents aqueous flowing back to the optical zone of the capsular bag. In the case of a dissection or laser capsulotomy, the double barrier seal prevents vitreous strands from passing beyond and inner edge of the ledge. Other optics for lenses, such as plano-convex or bi-convex, can utilize the double ledge principle.

Abstract: A corneal inlay for implant within the cornea and of a material such as polysulfone or PMMA, including a plurality of small holes or pores to pass nutrients and fluids from the bottom surface layer of the cornea to the top surface layer of the cornea. The holes can be round, the holes can be rectangular in configuration, or the holes can be slits in configuration, preferably small enough so that the holes are not visible to the naked eye. The holes can be particularly slots of a finite width and length, either adjacent to the edges of the inlay or across the surface of the inlay. The holes also provide for breathing and passage of nutrients and fluids, as well as oxygen transmission, between the upper and lower surfaces of the cornea in which the inlay has been implanted.

Abstract: Intraocular lens including a plano-convex lens and a plurality of flexible closed loops spaced about a circumference of an edge of the lens, one end of each closed loop fixedly secured into a hole in the edge and the other end of the closed loop in slidable engagement with an other hole in the edge, the other hole of a larger geometrical cross section than the cross section of the slidable end of the closed loop thereby providing an all-size lens. The arms of each loop can be planar or vaulted. A geometrical section of loop material such as a U-shaped curve or S-shaped curve can be positioned in the loop providing for additional sizing, adjusting and positioning of the slidable end of the loop. Pressure-relief ports can be provided through a port in the convex surface, the plano surface, or the edge or any combination thereof. Pressure relief can also be provided through an elliptical or notched hole for the slidable end of the loop, or a notched or tapered portion of the slidable end of the loop.

Abstract: Vaulted intraocular lens including a method and apparatus for vaulting universally an intraocular lens incorporating any geometrical configuration of closed or open loops attached to a lens such as a plano-convex or the like. The vaulted intraocular lens includes a base for each loop with either flat feet or flipped feet. The method of vaulting includes a fixture assembly including a base, a retainer, and a cap, the base and retainer screwing together and encompassing the lens including the plurality of loops, and the cap fitting down through a hole in the retainer providing gravity pressure against the lens and creating the vault. The vaulted lens, as well as the fixture and method of vaulting the lens, lends itself universally to any type of lens using any predetermined geometrically shaped loops, whether the loops be closed loops or open loops.

Abstract: A hand-held keratometer is formed of a handle mounting a circular ring of transparent material having a roughened surface to collect incident light and project a circle of light for use in measuring roundness and, therefore, astigmatism of an eye while being held in the hand of a surgeon, the keratometer carrying indicia to permit the surgeon to radially locate the axis of astigmatism and determine the extent of astigmatism.