Contact lens material
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United States of America Patent
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May 25, 1993
Grant Date -
N/A
app pub date -
Jul 19, 1991
filing date -
Jul 19, 1990
priority date (Note) -
Expired
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Abstract
An antibacterial contact lens material comprising a hydrogel lens material and an antibacterial ceramic containing at least one metal selected from the group consisting of Ag, Cu and Zn. The lens material contains from 0.001-10.0% by weight of the antibacterial ceramic and the ceramic from 0.0001 to 10.0% by weight of the metal based on the weight of the ceramic.
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