Effect of lens cleaning solutions against three species of Fusarium (A to F) or Candida albicans (G and H) grown planktonically. Susceptibilities of planktonically grown fungal cells were determined using the ISO 14729 methodology (A, C, E, and G) (at 0, 1, 2, 3, 4, or 20 h) or the XTT-based metabolic activity assay with an endpoint criterion of >50% inhibition compared to level for untreated controls (B, D, F, and H). The three species of Fusarium tested were FSSC 1-b (MRL8609) (A and B), FOSC 3-a (MRL8996) (C and D), and FSSC 2-c (ATCC 36031) (E and F), while the C. albicans isolate tested was SC5314. Planktonically grown Fusarium or Candida cells were either untreated (solid diamonds) or treated with MoistureLoc (solid squares) or MultiPlus (solid triangles) solutions. Percent reduction in metabolic activity was calculated for each lens care solution with respect to metabolic activity of biofilm grown in the absence of the disinfectant (which was considered to be 100% activity). Data represent means (± SDs) for three separate experiments.