| 摘要 |
The present invention provides a lens care composition having a persistent lipid removal efficacy characterized by that the amount of lipids adsorbed by a silicone hydrogel lens after about 10 cycles of soiling with a lipid soiling solution and subsequent cleaning with a lens care solution of the invention under no-rubbing conditions is about 70% or less of that after about 10 cycles of soiling with the lipid soiling solution and subsequent cleaning with an aqueous phosphate buffer under no-rubbing conditions. The lens care composition comprises at least one surfactant, a polyvinylpyrrolidone (PVP), xylitol, a buffering agent, wherein in combination with polyvinylpyrrolidone (PVP) and xylitol, the surfactant provides the persistent lipid removal efficacy.
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