Use of borate-polyol complexes in ophthalmic compositions
First Claim
1. In a method of disinfecting a contact lens by means of soaking the lens in an aqueous disinfectant solution containing a disinfecting amount of an antimicrobial agent, the improvement which comprises including 0.5 to 6.0 wt % of a water-soluble borate-polyol complex in the disinfectant solution, said complex containing borate and polyol in a molar ratio of 1:
- 0.1 to 1;
10, whereby the antimicrobial activity of the disinfectant solution is enhanced.
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Accused Products
Abstract
Water-soluble borate-polyol complexes are useful as buffers and/or antimicrobials in aqueous ophthalmic compositions, including those containing polyvinyl alcohol. These compositions have greater antimicrobial activity than comparable compositions containing typical borate buffers and unexpectedly increase the antimicrobial efficacy of other antimicrobial agents when used in combination. In addition, use of the borate-polyol complexes avoids the incompatibility problem typically associated with the combination of borate buffer and polyvinyl alcohol; therefore, the compositions disclosed herein may also contain polyvinyl alcohol.
61 Citations
28 Claims
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1. In a method of disinfecting a contact lens by means of soaking the lens in an aqueous disinfectant solution containing a disinfecting amount of an antimicrobial agent, the improvement which comprises including 0.5 to 6.0 wt % of a water-soluble borate-polyol complex in the disinfectant solution, said complex containing borate and polyol in a molar ratio of 1:
- 0.1 to 1;
10, whereby the antimicrobial activity of the disinfectant solution is enhanced. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
- 0.1 to 1;
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20. An aqueous solution for disinfecting contact lenses, comprising:
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a disinfecting amount of an ophthalmically acceptable antimicrobial agent;
an amount of a borate-polyol complex sufficient to enhance the antimicrobial efficacy of the antimicrobial agent, said complex containing borate and polyol in a molar ratio of 1;
0.1 to 1;
10; and
water. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28)
-
Specification