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4157864 |
Contact lens eyeball centering support of soft material for use in conjunction with hard contact lens
A contact lens eyeball centering support of soft material for use in conjunction with hard corneal contact lenses. The support has the form and the material of a soft contact lens and is...
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4153641 |
Polysiloxane composition and contact lens
Monomeric polysiloxanes end-capped with activated unsaturated groups and polymers and copolymers thereof are disclosed herein for use as contact lenses with improved properties, such as, oxygen...
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4153349 |
Soft contact lens with thin edge
This invention relates to novel contact lenses, to a method of preparing the same, and to apparatus for carrying out the method of the invention.
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4152283 |
Restoring agent for soft contact lenses
Soft contact lenses, which have become deteriorated as a result of prolonged use, are treated with an aqueous solution of ethylene oxide/propylene oxide block copolymer and...
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4152508 |
Silicone-containing hard contact lens material
An improved contact lens material is formed by a copolymer of a siloxanyl alkyl ester monomer, an itaconate ester and an ester of acrylic or methacrylic acid. The copolymer preferably includes a...
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4143949 |
Process for putting a hydrophilic coating on a hydrophobic contact lens
The surface of a contact lens is modified by deposition of an ultrathin coating of a hydrophilic polymer under the influence of plasma glow discharge so as to integrally bond the coating to the...
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4143017 |
Process of producing soft contact lenses
A soft contact lens having a water content of 20 to 45% and a tensile strength of at least 500 g/mm 2 can be produced by pouring into a mold a composition comprising 70 to 90% by weight of an...
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4131696 |
Contact lens treatment
Hard type contact lenses, such as those made of poly methyl methacrylate, are treated with an aqueous colloidal suspension of a physiologically inert inorganic hydrous oxide to render the lens...
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4123407 |
Hydrophilic contact lens
Contact lens of a hydrogel composition containing a physiologically acceptable aqueous solution and water-insoluble but water-swellable polymer composition from a polymerizable mixture containing: ...
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4122942 |
Hydrophilic contact lens case
A hydrophilic contact lens with at least the surfaces formed of a high molecular weight synthetic polymer, is treated by exposure to a plasma of an inert gas under near-vacuum conditions. The...
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4123408 |
Hydrogel contact lens
Contact lens of a hydrogel composition containing a physiologically acceptable aqueous solution and water-insoluble but water-swellable polymer composition from: (A) a water-soluble polymer of a...
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4121885 |
Method to produce a composite contact lens
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...
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4113686 |
Hydrophilic contact lenses and lens polymer
A superior hydrophilic gel polymer and contact lenses therefrom are formed by bulk polymerization of about 100 parts by volume of hydroxyethyl methacrylate, 10 parts by volume of isobutyl...
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4111922 |
Hydrophilic random interpolymer from quaternary ammonium monomers and method for making same
Hydrocolloidal dispersions of random interpolymer compositions that have a capacity for absorbing water in amounts of from 10 to 125 times their own weight or greater and are also bacteriostatic...
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4110264 |
Permeable polymethylmethacrylate contact lens
A gas permeable contact lens concave-convex in form made of a transparent, optically clear polymethylmethacrylate.
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4109070 |
Method of producing optically clear hydrophilic copolymers and contact lenses
In the process of making optically clear hydrophilic copolymers formed by copolymerizing a glycol monoester of acrylic or methacrylic acid with an alkoxy monomer having the formula: ##STR1##...
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4109074 |
Process for preparing a hydrophilic water insoluble polymer and the resulting polymer and polymer articles
A process for preparing a hydrophilic water insoluble acrylic polymer by heating a composition consisting essentially of a compound having the generic formula ##STR1## wherein --R 1 is --H, --CH 3...
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4107121 |
Ionogenic hydrophilic water-insoluble gels from partially hydrolyzed acrylonitrile polymers and copolymers, and a method of manufacturing same
The invention relates to new ionogenic hydrogels based on partially hydrolyzed polymers containing, in the starting material, at least 60, advantageously at least 80% (mol.) of acrylonitrile units,...
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4099859 |
Contact lens having a smooth surface layer of a hydrophilic polymer
A contact lens comprising a silicone polymer or copolymer core and a hydrophilic polymer surface grafted to the core is formed by contacting a silicone with a free radical polymerizable precursor...
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4054624 |
Preparing a hydrated contact lens
A contact lens composition, having improved dimensional stability, suitable for use in the preparation of a corrective hydrated lens or an eye bandage, comprises polymerized random graft copolymers...
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3933411 |
Hydrophilic contact lens with embedded stabilizing means
A contact lens wherein the body of the lens is made of soft plastic with a stabilized optical area in the lens, stabilization of the optical area being realized with the addition of stabilizing...
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3833786 |
LASER APPARATUS FOR FENESTRATION OF CONTACT LENSES
Laser apparatus for fenestration of contact lenses by forming consistently precise perforations being normal to the adjacent surfaces of the lens and with the inside diameter of the perforations...
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