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Chemical investigations of ultraviolet-absorbing hydrogel material for soft intraocular lenses. 1989

T V Chirila, and A V Russo, and I J Constable
Lions Eye Institute, Perth, Western Australia.

A poly(2-hydroxyethyl methacrylate) hydrogel material exhibiting ultraviolet-absorbing properties was synthesized by simultaneous polymerization, crosslinking, and covalent bonding of an available polymerizable absorber. The two-stage leaching experiments carried out by aqueous extraction and the analysis of the concentrated extracts by high resolution capillary gas chromatography showed very low levels of additive released through leaching action. This proves that the ultraviolet absorbers can be successfully incorporated by covalent bonding in soft hydrogel intraocular lenses.

UI MeSH Term Description Entries
D007910 Lenses, Intraocular Artificial implanted lenses. Implantable Contact Lens,Lens, Intraocular,Contact Lens, Implantable,Intraocular Lens,Intraocular Lenses,Lens, Implantable Contact
D011102 Polyhydroxyethyl Methacrylate A biocompatible, hydrophilic, inert gel that is permeable to tissue fluids. It is used as an embedding medium for microscopy, as a coating for implants and prostheses, for contact lenses, as microspheres in adsorption research, etc. Glycol Methacrylate Gel,Hydroxymethacrylate Gel,PHEMA,Poly-Hema,Polyglycol Methacrylate,Gel, Glycol Methacrylate,Gel, Hydroxymethacrylate,Methacrylate Gel, Glycol,Methacrylate, Polyglycol,Methacrylate, Polyhydroxyethyl,Poly Hema
D011109 Polymethacrylic Acids Poly-2-methylpropenoic acids. Used in the manufacture of methacrylate resins and plastics in the form of pellets and granules, as absorbent for biological materials and as filters; also as biological membranes and as hydrogens. Synonyms: methylacrylate polymer; poly(methylacrylate); acrylic acid methyl ester polymer. Methacrylic Acid Polymers,Acid Polymers, Methacrylic,Acids, Polymethacrylic,Polymers, Methacrylic Acid
D011837 Radiation-Protective Agents Drugs used to protect against ionizing radiation. They are usually of interest for use in radiation therapy but have been considered for other purposes, e.g. military. Radiation Protectant,Radiation Protective Agent,Radiation-Protective Agent,Radiation-Protective Drug,Radioprotective Agent,Radioprotective Agents,Radioprotective Drug,Agents, Radiation-Protective,Radiation Protectants,Radiation Protective Agents,Radiation-Protective Drugs,Radiation-Protective Effect,Radiation-Protective Effects,Radioprotective Drugs,Agent, Radiation Protective,Agent, Radiation-Protective,Agent, Radioprotective,Agents, Radiation Protective,Agents, Radioprotective,Drug, Radiation-Protective,Drug, Radioprotective,Drugs, Radiation-Protective,Drugs, Radioprotective,Effect, Radiation-Protective,Effects, Radiation-Protective,Protectant, Radiation,Protectants, Radiation,Protective Agent, Radiation,Protective Agents, Radiation,Radiation Protective Drug,Radiation Protective Drugs,Radiation Protective Effect,Radiation Protective Effects
D002621 Chemistry A basic science concerned with the composition, structure, and properties of matter; and the reactions that occur between substances and the associated energy exchange.
D002849 Chromatography, Gas Fractionation of a vaporized sample as a consequence of partition between a mobile gaseous phase and a stationary phase held in a column. Two types are gas-solid chromatography, where the fixed phase is a solid, and gas-liquid, in which the stationary phase is a nonvolatile liquid supported on an inert solid matrix. Chromatography, Gas-Liquid,Gas Chromatography,Chromatographies, Gas,Chromatographies, Gas-Liquid,Chromatography, Gas Liquid,Gas Chromatographies,Gas-Liquid Chromatographies,Gas-Liquid Chromatography
D000179 Acrylates Derivatives of acrylic acid (the structural formula CH2
D001577 Benzophenones Derivatives of benzophenone (with the structural formula phenyl-(C
D013056 Spectrophotometry, Ultraviolet Determination of the spectra of ultraviolet absorption by specific molecules in gases or liquids, for example Cl2, SO2, NO2, CS2, ozone, mercury vapor, and various unsaturated compounds. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Ultraviolet Spectrophotometry
D015394 Molecular Structure The location of the atoms, groups or ions relative to one another in a molecule, as well as the number, type and location of covalent bonds. Structure, Molecular,Molecular Structures,Structures, Molecular

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