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. Author manuscript; available in PMC: 2014 May 14.
Published in final edited form as: Cornea. 2009 Sep;28(8):918–926. doi: 10.1097/ICO.0b013e3181a81835

Fig. 5.

Fig. 5

Activity of contact lens cleaning solutions against P. aeruginosa, S. marcescens, or S. aureus grown (A) as planktonic cells, or (B) as biofilms on lotrafilcon A lenses. The effect of contact lens care solutions against planktonically grown cells was evaluated according to International Organization for Standardization (ISO 14729) Stand Alone Procedure guidelines. The effect of contact lens care solutions against mature biofilm was assessed after soaking the biofilm coated lens in each manufacturer’s solution for the recommended soak time. Data represent reduction in log CFU (Mean ± Standard Deviation), for at least three replicates. *P ≤0.001 compared to untreated planktonic cells. Effects of Optifree (against P. aeruginosa and S. aureus) and Clear Care (against all three species) were significantly different (p<=0.02) from the biguanide preserved solutions. **P ≤ .001 when comparing effect of Clear Care solution against S. marcescens biofilms. ◆P ≤ .001 when comparing effect of OptiFree or Clear Care solutions against S. aureus biofilms.