OPHTHALMIC SOLUTIONS WITH IMPROVED DISINFECTION PROFILES
First Claim
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1. An ophthalmic composition comprising hydrogen peroxide and a boron compound, said composition having a pH of between 6.5 and 9.0.
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Abstract
The present invention relates to ophthalmic solutions with antimicrobial activity. The solutions have an antimicrobial compound such as hydrogen peroxide and a boron compound. In one embodiment, the solutions contain a boron compound such as sodium borate that provides antimicrobial activity in addition to that of hydrogen peroxide, particularly during periods following disinfection and neutralization of such solutions. This additional activity reduces the likelihood of microbial growth in contact lens disinfection applications that neutralize hydrogen peroxide.
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20 Claims
- 1. An ophthalmic composition comprising hydrogen peroxide and a boron compound, said composition having a pH of between 6.5 and 9.0.
- 10. An improved ophthalmic composition comprising hydrogen peroxide, said composition further comprising a concentration of boron sufficient to reduce or prevent microbial growth in the composition following neutralization of the hydrogen peroxide.
- 15. In a method for disinfecting contact lenses comprising immersing a contact lens in an ophthalmic composition comprising hydrogen peroxide, the improvement consisting of immersing a contact lens in an ophthalmic composition comprising hydrogen peroxide and a boron compound, said boron compound present in a concentration sufficient to reduce or prevent microbial growth in the composition.
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20. An ophthalmic composition consisting essentially of:
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a) 3.0 w/v % hydrogen peroxide; b) 0.33 w/v % sodium borate; c) 0.41 w/v % boric acid; d) 0.136 w/v % monobasic sodium phosphate; e) 0.062 w/v % dibasic sodium phosphate; f) 0.12 w/v % DEQUEST®
2060S;g) 0.47 w/v % sodium chloride; h) a pH-adjusting agent in an amount sufficient to cause the composition to have a pH of 7.0; and i) purified water.
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Specification