摘要:
A contact lens package includes a sealed receptacle containing a contact lens immersed in a sterile solution. The contact lens is made of a silicone hydrogel copolymer, and the solution includes a stabilizing agent in an amount effective to inhibit changes in physical properties of the silicone hydrogel copolymer.
摘要:
Compositions for inhibiting attachment of microorganisms to the surface of biomaterials include a polyether, such as a poloxamer. The compositions are especially useful for treating contact lenses to prevent bacterial attachment to the lens.
摘要:
Ophthalmic compositions such as eye drop and contact lens treating solutions include a polycationic material to enhance antimicrobial efficacy against protozoans such as acanthamoebae. One preferred class of polycationic materials is cationic cellulose derivatives.
摘要:
Fluorinated side-chain siloxane copolymeric matrix controlled diffusion drug delivery systems are provided that allow controlled release of sustained concentrations of therapeutic agents within a treated area for a prolonged period of time. The favorable solubility characteristics of the fluorinated sidechains of the siloxane copolymeric matrix controlled diffusion drug delivery systems allow for manipulation of drug release rates depending on the particular therapeutic use and the particular needs of the patient.
摘要:
A method of making a lens, such as a contact lens, with a colored portion involves introducing a lens-forming monomer mixture and a colored material to a lens mold, applying a magnetic field to the monomer mixture and the colored material, whereby the colored material migrates in response to the magnetic field to form a desired pattern, and curing the lens-forming monomer mixture with the colored material forming a desired colored pattern in the lens.
摘要:
A method of making a lens, such as a contact lens, with a colored portion involves introducing a lens-forming monomer mixture and an ionic colored material to a lens mold, applying an electrical field to the monomer mixture and the colored material, whereby the colored material migrates in response to the electrical field to form a desired pattern, and curing the lens-forming monomer mixture with the colored material forming a desired colored pattern in the lens.
摘要:
The present invention provides an optically clear, hydrophilic coating upon the surface of a silicone medical device by sequentially subjecting the surface of the lens to plasma polymerization reaction in a hydrocarbon atmosphere to form a carbon layer, and then graft polymerizing a mixture of monomers comprising hydrophilic monomers onto the carbon layer. The invention is especially useful for forming a biocompatible coating on silicone hydrogel contact lenses.
摘要:
Low water silicone-containing elastomers are based on a hydroxy- or amino-terminated prepolymer derived from an ethylenically unsaturated silicon-containing monomer, and at least one monomer reactive with hydroxyl- or amino-functional radicals of the prepolymer. The elastomers are especially useful as contact lens materials.