Abstract: An intraocular lens (20) for use as an artificial lens implant is disclosed. The intraocular lens includes a lens body (21) having first and second relatively rigid members (24) and (30). Hinges (40) and (45) provide means for resiliently cooperatively connecting the first section (24) to the second section (30). The first section (24) is foldable with respect to the second section (30), wherein the lens body (21) may be folded from an operational configuration to a smaller insertion configuration making implantation possible through a smaller cut in the cornea of the eye than would otherwise be possible and after insertion and upon release of the hinges (40) and (45) the lens body (21) returns to the operational configuration without further manipulation. Three embodiments of the intraocular lens (20), (50) and (80) are disclosed.

Abstract: A bifocal intraocular lens (20) for use as an artificial lens implant is disclosed. The bifocal intraocular lens (20) includes a lens body (21) having a chord (20b) and also having first and second relatively rigid members (24) and (30). The first section (24) is positioned on one side of the chord (20b) and the second section (30) is positioned on the other side of the chord (20b). The first section (24) has a focal length and the second section (30) has a focal length different from the focal length of the first section (24). Three embodiments of the bifocal intraocular lens (20, 50 and 80) are disclosed.

Abstract: An intraocular lens for use as an artificial lens impant in the posterior chamber of the human eye adjacent the posterior capsule, after extracapsular extraction is disclosed. The intraocular lens includes an optical lens body, and a continuous ring-like member spaced from the rear surface of the lens body by a plurality of supporting bosses which are attached to and extend directly rewardly from a peripheral portion of the rear surface of the lens body. The continuous ring-like member is preferably made of PROLENE.RTM. and forms a resilient seal against the posterior capsule of the eye when implanted in the posterior capsule, thereby extending the period of time between cataract extraction and subsequent corrective micro-surgery necessitated by secondary cataract growth.

Abstract: An intraocular lens for use as an artificial lens implant is disclosed. The intraocular lens includes an optical lens body having a periphery and two curved, elongated and resilient haptic members for positioning and supporting the lens in the eye. Each haptic member has an inner or root end and an outer or free end. The haptic member are integrally formed with the lens body as a one-piece construction at the root ends thereof. The haptic members extend outwardly from the lens body along an arc exterior to the periphery of the lens body. Each haptic member has at least a portion thereof tapered or reduced in cross sectional dimension in a direction therealong from the root end toward the free end.

Abstract: The present invention is directed to an intraocular lens having a lens body which includes a primary portion and secondary portions. The secondary portions are connected to the primary portion with connect members. The secondary portions may be folded with respect to the primary portion so that a smaller perimeter for the lens body is possible during lens insertion into the eye thereby requiring a smaller incision in the cornea than is otherwise possible.

Abstract: Wettable, oxygen and carbon dioxide permeable, optically clear contact lenses are made of a composition comprising styrene or a substituted styrene compound, an ethylenically polyunsaturated crosslinking compound and an ethylenically unsaturated silicone containing compound and an .alpha.,.beta.-unsaturated dicarboxylic acid anhydride compound.

Abstract: Hard, wettable, gas-permeable, optically acceptable mechanically stable vision correction lenses can be made from a substantially hydrophobic polymeric matrix having randomly polymerized throughout the matrix residues derived from a hydrolyzable silicone-containing ethylenically unsaturated monomer.

Abstract: An intraocular lens (10) adapted for use as artificial lens implant is disclosed. The intraocular lens (10) includes an optical lens body (11) having an convex upper surface (11a) and a bottom surface (11b). The convex surface (11a) has a peripheral zone (15) and an apex (16). The lens body (11) has a height of a distance from the apex (16) to the bottom surface (11b). A haptic element mounting means comprises a first boss (13a) cooperatively connected to the convex surface (11a) within the peripheral zone (15). The first boss (13a) has a height that does not extend substantially above a plane parallel to the bottom surface (11b) and the plane contains the apex (16) of the optical lens body (11). The first boss (13a) does not substantially increase the height of the optical lens body (11). In a preferred embodiment, the intraocular lens (10) includes a first and second haptic element (12a) and (12b) cooperatively connected to the first boss (13a) and second boss (13b).

Abstract: The method and apparatus for marking of soft contact lenses with identification indicia is disclosed. A film cartridge is provided for supporting a non-gel film having lens marking indicia gel or dye disposed thereon. The cartridge has an opening therein to access the film and a backing pad is positioned proximate the film opposite the opening to disperse marking contact force. A lens supporting pedestal having a curvilinear head is provided for supporting the lens in a marking position. A pair of spring biased latches are provided for engaging either end of the cartridge which includes recesses to engage the latching members. A guide is provided for aligning the cartridge, and the film supported therein, with the curvilinear marking head. The cartridge and pedestal are sized to cause a predetermined force to be applied to the film against the backing pad through the lens to be marked. To mark a lens, it is cleaned, rinsed and dried, and positioned on the curvilinear head.

Abstract: A new concept in polymeric prosthetic devices having a portion thereof composed of a hydrophilic polymer is described herein in which distortions and stresses upon the device due to water absorption are minimized or eliminated. Physical properties of the various portions of the device may thus be varied to provide the particular physical parameters required. Compositions of matter and methods of manufacturing the novel prosthetic devices are described. The composition of matter is a polymer which includes a water soluble solid inert substance removable by exposure to water during hydration of the hydrophilic portion of the device, thus eliminating distortions and stresses therein. The hydrophilic polymer described is useful, for example, as one component part of such prosthetic devices as a hard-soft contact lens, cardiovascular implants, etc. useful in aqueous environment wherein stress and deformation of the polymer shape due to hydration must be minimized.

Abstract: A new concept in polymeric prosthetic devices having a portion thereof composed of a hydrophilic polymer is described herein in which distortions and stresses upon the device due to water absorption are minimized or eliminated. Physical properties of the various portions of the device may thus be varied to provide the particular physical parameters required. Compositions of matter and methods of manufacturing the novel prosthetic devices are described. The composition of matter is a polymer which includes a water soluble solid inert substance removable by exposure to water during hydration of the hydrophilic portion of the device, thus eliminating distortions and stresses therein. The hydrophilic polymer described is useful, for example, as one component part of such prosthetic devices as a hard-soft contact lens, cardiovascular implants, etc. useful in aqueous environment wherein stress and deformation of the polymer shape due to hydration must be minimized.