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5994488 |
Plastic articles for medical use
Plastic articles for medical use comprising a polymer, which polymer comprising units derived from an ethylenically unsaturated monomer having a chain containing amino and organosiloxane groups,...
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5981615 |
Polymerizable siloxane macromonomers
A macromonomer of the formula I is described: Q--B(L--B) n T (I) wherein n is zero or at least 1.0; Q is a polymerizable group; B may be the same or...
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5975694 |
Contact lens and method for making the same
The present invention relates to a contact lens having a back side comprising a central zone and a peripheral zone located about the central zone, wherein the peripheral zone has a surface defined...
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5971541 |
Correction of astigmatism using rotationally symmetric contact lenses
A rotationally symmetric contact lens has a reservoir formed centrally on the posterior surface thereof to provide an additional optical power of up to 1.51 diopters. The reservoir may be...
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5969790 |
Multi prism image enhancing lens system and method of making same
A prismatic lens (10) having a plurality of integral prisms (60), wherein the prisms (60) surround a central non prism area (90) in an apex portion (68) in-base (62) out orientation. Each prism...
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5962005 |
Transparent cellulose hydrogel and production process thereof
A transparent cellulose hydrogel having a transmittance of visible light of not less than 70%/mm and a tensile strength of not less than 10 kg/cm 2 , wherein the hydroxyl groups of cellulose...
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5963297 |
Orthokeratology contact lens and method therefor
A contact lens (400) and orthokeratology method for correcting a patient's vision. The contact lens (400) has an optical zone (406) for compressing a central potion of a cornea. The contact lens...
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5953097 |
Contact lens for use with ophthalmic monitoring systems
A contact lens for use with pupil monitoring systems. A contact lens has a first surface that conforms to a cornea and sclera of patient's eye, and a second surface that has a tubular extension...
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5953098 |
Contact lens
A contact lens for use with an asymmetric aspherical cornea. The lens includes an anterior surface, a posterior surface and a base. The posterior and anterior surfaces each include a center optical...
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5945498 |
Polysiloxane-comprising perfluoroalkyl ethers and the preparation and use thereof
The present invention describes a free radical polymerizable segmented macromonomer based on perfluoroelkyl ether, polysiloxane and divalent organic segments. This macromoner can be polymerized and...
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5936703 |
Alkoxysilane compound, surface processing solution and contact lens
An alkoxysilane compound represented by the formula (I) ##STR1## wherein R 1 , and R 2 denote --CH 3 or --C 2 H 5 and X denotes --COO - or --SO 3 - , p and n denote an integer of 1 to 3 and q...
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5936705 |
Pattern for color modifying contact lens
A color modifying contact lens having an iris pattern having color elements that surround a non-opaque pupil section, wherein the pattern comprises three annular regions: an inner region, an...
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5929968 |
Scleral-corneal contact lens
A contact lens is formed of rigid gas permeable material and covers the cornea and a small adjacent portion of the sclera of an eye. The posterior surface of the lens has a radially outer portion...
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5926252 |
Ophthalmic instrument that measures rotation of a toric contact lens
An optical diagnostic apparatus for measuring toric contact lens rotation comprising a slit lamp optical instrument including a light source, a slit light projector for projecting a beam of light,...
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5922821 |
Ophthalmic lens polymers
High refractive index copolymers suitable for use in ophthalmic lenses, such as foldable intraocular lenses, are disclosed. The high refractive index copolymers of the present invention consist...
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5923397 |
Bimodulus contact lens article
A bimodulus contact lens article, including both contact lenses and buttons from which contact lenses are produced. More specifically, the subject bimodulus contact lens article comprises a rigid...
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5912719 |
Contact lens with palpebral bosses
A contact lens has at least one palpebral boss projecting locally from its external surface in its peripheral area. The palpebral boss is globally elongate in a circumferential direction and the...
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5908906 |
Monomeric units useful for reducing the modulus of silicone hydrogels
Monomeric units useful in reducing the modulus of hydrogels are disclosed. Silicone hydrogels including the subject monomeric units are especially useful in the formation of biomedical articles...
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5905561 |
Annular mask lens having diffraction reducing edges
Annular mask lens for vision correction having diffraction-reducing edges. The lens body having an annular mask that forms a "soft edge" by gradually decreasing the transmissivity radially from the...
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5903333 |
Contact lens for use with ophthalmic monitoring systems
A contact lens for use with pupil monitoring systems. A contact lens has a first surface that conforms to a cornea and sclera of a patient's eye, and a second surface that has a tubular extension...
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5883152 |
Contact lens
A contact lens contains a copolymer obtained by copolymerizing, as an indispensable feed monomer, 2 to 95 wt. % of a carboxylic acid ester monomer and 98 to 5 wt. % of a copolymerizable monomer....
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5880171 |
Fast curing polymeric compositions for ophthalmic lenses and apparatus for preparing lenses
A polymerizable composition for the production of high quality ophthalmic lenses is disclosed that includes: a) between 20 and 90 weight percent, and preferably, at least 50 weight percent, of...
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5872613 |
Method of manufacturing contact lenses
A method for providing a contact lens for a patient. According to this method, an optical preform is selected, and a resting position of the optical preform on the patient's eye is determined. An...
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5864378 |
Enhanced monofocal IOL or contact lens
An ophthalmic lens for providing a monofocal vision correction power with an enhanced depth of focus is disclosed. The ophthalmic lens includes a baseline diopter power for far vision correction, a...
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5864379 |
Contact lens and process for fitting
A contact lens with a central region (10) that is optimally less than approximately 1.9 millimeters in diameter and that is preferably overcorrected by approximately 25% to 100% over the correction...
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5855825 |
Process for producing ocular lens and ocular lens produced by the process
A process for producing an ocular lens characterized by mixing a polymerizable component for an ocular lens with an organic solvent (I) capable of dissolving the polymerizable component, injecting...
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5837377 |
Biomedical articles with ionically bonded polyelectrolyte coatings
A hydrophilic article for use in aqueous environments, including a substrate, an ionic polymeric layer on said substrate, and a disordered polyelectrolyte coating ionically bonded to said polymeric...
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5835187 |
Aspheric multifocal contact lens having concentric front surface
The present invention relates to a multifocal contact lens having an edge, a front and back side and a series of concentrically arranged zones comprising central zone, a marginal zone and a...
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5817924 |
Method and apparatus for measuring oxygen transmission through contact lenses
An apparatus for measuring the gas transmission rate through contact lens material, and a method of measuring, using a test cell having an upper and lower gas chamber and separating the upper and...
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5812235 |
Multifocal corneal contact lenses
A pair of multifocal contact lenses for a patient comprises a first corneal contact lens having a concave posterior surface and a convex anterior surface. The anterior surface is formed with a...
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5807944 |
Amphiphilic, segmented copolymer of controlled morphology and ophthalmic devices including contact lenses made therefrom
The subject matter of the present invention is an amphiphilic, segmented copolymer of controlled morphology comprising at least one segment having high oxygen permeability, at least one segment...
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5805264 |
Process for graft polymerization on surfaces of preformed substates to modify surface properties
The invention relates to a process for modifying the surface characteristics of a preformed polymer substrate to impart altered properties thereto by graft polymerization on the substrate which...
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5805266 |
Method of machining contact lenses
A method for providing a contact lens for a patient. According to this method, an optical preform is selected, and a resting position of the optical preform on the patient's eye is determined. An...
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5798816 |
Multispheric contact lens
Multispheric contact lenses have a posterior surface including a central, concave spherical optical zone and at least two concave spherical curves peripheral to the central concave optical zone....
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5789463 |
Ocular lens material and process for producing the same
An ocular lens material comprising a copolymer obtained by copolymerizing a copolymerizable composition of which the main components are a diene polymer and a monomer capable of copolymerizing with...
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5786883 |
Annular mask contact lenses
An annular mask contact lens designed to operate with the normal functioning of the human pupil. An annular mask forms a small pinhole-like aperture on the contact lens enabling continual focus...
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5771088 |
Contact lens designed to accommodate and correct for the effects of presbyopia
A contact lens is disclosed which has a first optical zone (2) adapted to compensate for spherical aberration and at least one additional zone (3) which is configured to provide improved peripheral...
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5764339 |
Compressive force-activated variable focus lens and method of making the same
A variable focus contact lens, has a body with a first half and an opposite second half. The body also has a first peripheral surface, an opposite second peripheral surface and an associated focal...
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5728156 |
Prismatic intraocular lenses and related methods of in situ alteration of their optical characteristics
Prismatic intraocular lenses are disclosed for restoring visual function to an eye having macular degeneration. The lenses each include a convex lens optic for receiving and focusing light rays, a...
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5726733 |
Method for increasing hydrophilicity of contact lenses
A method for increasing hydrophilicity of a contact lens, so as to improve surface wettability of the lens, comprises contacting a surface of the contact lens with an aqueous solution including a...
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5724258 |
Neural network analysis for multifocal contact lens design
The present invention discloses a method for optimizing multifocal lens designs using neural network analysis. More specifically, a neural network is trained using data collected in clinical...
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5714557 |
Monomeric units useful for reducing the modulus of low water polymeric silicone compositions
Monomeric units useful in reducing the modulus of low water polymeric silicone compositions are disclosed. Low water compositions including the subject monomeric units are especially useful in the...
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5712327 |
Soft gas permeable contact lens having improved clinical performance
A hydrophilic soft gas permeable contact lens having substantially improved clinical performance by the provision of a sufficient higher proportion of hydroxy acrylic units to silicon units in the...
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5708064 |
High refractive index photochromic ophthalmic article
Organic ophthalmic articles are photochromic and have high indices of refraction.
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5693095 |
High refractive index ophthalmic lens materials
Improved soft, foldable acrylic lens materials which are particularly suited for use as IOLs, but which are also useful as other ophthalmic devices, such as contact lenses, keratoprostheses, and...
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5684560 |
Concentric ring single vision lens designs
Concentric ring, single vision lens designs are disclosed which improve the depth-of-focus of the lens relative to current spherical contact lenses or intraocular lenses by placing at least one...
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5674942 |
Interpenetrating polymer networks for contact lens production
The present invention is directed to an interpenetrating polymer network comprised of a polyurea network interpenetrated with a polyacrylic network and the article of manufacture, such as a contact...
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5662706 |
Variable transmissivity annular mask lens for the treatment of optical aberrations
An annular mask lens for the treatment of optical aberrations such as but not limited to night myopia, spherical aberration, aniridia, keratoconus, corneal scarring, penetrating keratoplasty, and...
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5661218 |
Biocompatible optically transparent polymeric material based upon collagen and method of making
The present invention is biocompatible polymer containing the copolymerization product of a mixture of hydrophobic and hydrophilic acrylic and/or allelic monomers, graft-polymerized with...
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5650837 |
Rotationally stable contact lens designs
Non-ballasted, eyelid rotationally stabilized designs are disclosed for use in toric or multifocal toric contact lenses. The back surface of the lens includes a toric or multifocal toric surface...
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