Title:
MATERIAL FOR SOFT INSIDE EYE LENS
Document Type and Number:
Japanese Patent JP3641110
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a material for soft inside eye lens which is excellent in softness and transparency and has high refractive index, and moreover does not cause glistenings by using a polymer composed through the polymerization of polymerizing component containing a hydrophilic monomer and regulating its absorption coefficient so as to be within a specified range.
SOLUTION: A polymer for a soft inside eye lens used for the operation of cataract can be obtained by polymerizing a polymerizing component containing a hydrophilic monomer. The hydrophilic monomer is the indispensable composition unit of the soft inside eye lens material and used as a component to promote the lowering of glistenings of the soft inside eye lens material. As the hydrophilic monomer, hydroxide group containing alkyl(meta)acrylate having 1-20 of alkyl group carbons, (meta)acrylic amide monomer, N-vinyl lactam and the like are listed.
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Inventors:
Tatsuya Oshio
Kazuharu Niwa
Kawaguchi Tohru
Kazuharu Niwa
Kawaguchi Tohru
Application Number:
JP22404997A
Publication Date:
April 20, 2005
Filing Date:
August 20, 1997
Export Citation:
Assignee:
Menicon Co., Ltd.
International Classes:
G02C7/04; A61L27/00; A61L27/16; A61L27/50; C08F20/28; C08F20/56; C08F26/06; (IPC1-7): A61L27/00; C08F20/28; C08F20/56; C08F26/06; G02C7/04
Domestic Patent References:
| JP62209512A | ||||
| JP8503506A | ||||
| JP8173522A |
Foreign References:
| WO1996040303A1 |
Attorney, Agent or Firm:
Sota Asahina
Kei Saki
Kei Saki