Cleaning-preserving aqueous solution for contact lenses and method for cleaning and disinfecting a contact lens by means thereof
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United States of America Patent
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Mar 28, 1995
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N/A
app pub date -
Sep 29, 1993
filing date -
Oct 1, 1992
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Expired
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Abstract
A cleaning-preserving aqueous solution for contact lenses, which contains, as a surfactant, a tetra-fatty acid polyoxyethylene sorbitol of the formula 1: ##STR1## wherein a+b+c+d+e+f=20 to 50, and four among R.sub.1 to R.sub.6 are C.sub.12-18 saturated or unsaturated fatty acid residues and the remaining two are hydrogen atoms, and which has a physiological osmotic pressure and has a pH adjusted to a level of from 4 to 9.
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