AcanthamoebaAcanthamoeba KeratitisContact LensesRNA, Ribosomal, 18SAcanthamoeba castellaniiDNA, ProtozoanAmoebaCorneaSymbiosisAmebiasisAmebicidesContact Lens SolutionsNaegleriaTrophozoitesMimiviridaePhylogenyMolecular Sequence DataMicrobial Sensitivity TestsBiguanidesSequence Analysis, DNADNA, Bacterial