Use of multifunctional surface active agents to clean contact lenses
First Claim
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1. A method of cleaning a contact lens which comprises soaking the lens in an aqueous solution comprising water and an amount of an anionic dissociating compound effective to clean the lens, said compound having the formula:
- wherein R is a straight or branched alkyl or alkenyl group containing a total of from 8 to 18 carbon atoms.
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Abstract
Cleaning compositions for contact lenses are described. The compositions contain multifunctional anionic surfactants that include at least two hydrophilic dissociating head groups. The multifunctional surfactants described (e.g., LED3A) possess both surface active and chelating properties, and have been found to be particularly effective in removing protein deposits from contact lenses.
46 Citations
24 Claims
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1. A method of cleaning a contact lens which comprises soaking the lens in an aqueous solution comprising water and an amount of an anionic dissociating compound effective to clean the lens, said compound having the formula:
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wherein R is a straight or branched alkyl or alkenyl group containing a total of from 8 to 18 carbon atoms. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A sterile, aqueous multi-purpose solution for treating contact lenses, comprising:
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0.001 to 1 w/v % of an anionic dissociating compound of the formula;
wherein R is a straight or branched alkyl or alkenyl group containing a total of from 8 to 18 carbon atoms; an ophthalmically acceptable antimicrobial agent in an amount effective to disinfect contact lenses; and water;
said solution having a physiologically compatible pH and an osmolality of 200 to 400 mOsm/kg.- View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 23)
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20. A sterile, aqueous, multi-purpose solution for treating contact lenses, comprising:
- 0.05 to 0.5 w/v % of lauroylethylenediaminetriacetate;
an amount of polyquaternium-1 effective to disinfect a contact lens;
a buffer in an amount sufficient to maintain the pH of the solution in the range of 7.0 to 8.0; and
water;
said solution having an osmolality of 200 to 400 mOsm/kg. - View Dependent Claims (21, 22, 24)
- 0.05 to 0.5 w/v % of lauroylethylenediaminetriacetate;
Specification