Biomaterial Database

Fibrinous reaction on implanted intraocular lenses. A comparison of conventional PMMA and heparin surface modified lenses. 1992

B Lundgren, and G Selén, and M Spångberg, and A Härfstrand

Kabi Pharmacia Ophthalmics, Department of Biology, Uppsala, Sweden.

We studied the fibrinous reaction after intraocular lens (IOL) implantation in the posterior chamber of cynomolgus monkeys. In 50% of the eyes, we implanted an IOL made of conventional poly-(methyl methacrylate) (PMMA); in the remaining eyes we implanted a PMMA IOL with a heparin modified surface. Two, 4, 8, and 18 weeks after surgery the eyes were examined by slitlamp for fibrinous reactions on and around the IOL surface. At weeks 4, 8, and 18 there was a marked decrease in fibrinous reaction in the eyes with a heparin surface modified IOL. The results of this study accord with earlier findings that heparin surface modification improves the biocompatibility of the IOL.

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
D008252	Macaca fascicularis	A species of the genus MACACA which typically lives near the coast in tidal creeks and mangrove swamps primarily on the islands of the Malay peninsula.	Burmese Long-Tailed Macaque,Crab-Eating Monkey,Cynomolgus Monkey,M. f. aurea,M. fascicularis,Macaca fascicularis aurea,Monkey, Crab-Eating,Monkey, Cynomolgus,Crab-Eating Macaque,Burmese Long Tailed Macaque,Crab Eating Macaque,Crab Eating Monkey,Crab-Eating Macaques,Crab-Eating Monkeys,Cynomolgus Monkeys,Long-Tailed Macaque, Burmese,Macaque, Burmese Long-Tailed,Macaque, Crab-Eating,Monkey, Crab Eating
D008297	Male		Males
D008768	Methylmethacrylates	The methyl esters of methacrylic acid that polymerize easily and are used as tissue cements, dental materials, and absorbent for biological substances.
D002387	Cataract Extraction	The removal of a cataractous CRYSTALLINE LENS from the eye.	Enzymatic Zonulolysis,Phakectomy,Cataract Extractions,Enzymatic Zonulolyses,Extraction, Cataract,Extractions, Cataract,Phakectomies,Zonulolyses, Enzymatic,Zonulolysis, Enzymatic
D005260	Female		Females
D005337	Fibrin	A protein derived from FIBRINOGEN in the presence of THROMBIN, which forms part of the blood clot.	Antithrombin I
D005549	Foreign-Body Reaction	Chronic inflammation and granuloma formation around irritating foreign bodies.	Foreign Body Reaction,Reaction, Foreign-Body
D006493	Heparin	A highly acidic mucopolysaccharide formed of equal parts of sulfated D-glucosamine and D-glucuronic acid with sulfaminic bridges. The molecular weight ranges from six to twenty thousand. Heparin occurs in and is obtained from liver, lung, mast cells, etc., of vertebrates. Its function is unknown, but it is used to prevent blood clotting in vivo and vitro, in the form of many different salts.	Heparinic Acid,alpha-Heparin,Heparin Sodium,Liquaemin,Sodium Heparin,Unfractionated Heparin,Heparin, Sodium,Heparin, Unfractionated,alpha Heparin
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia