Microbial Challenge Testing Of Soft Contact Lens Solutions

This paper presents a single trial run in which soft contact lens saline solutions were innoculated with low level microbial loads. The solutions used were Lens Plus, Unisol 4, Sensitive Eyes, Boil n Soak, and Opti-Soft. Each solution was fresh, unopened and
used straight from its container. The microorganisms used were S.epidermidis, P. aeruginosa, S. marcescens, C. albicans and S. aureus. Each was obtained from serial dilution with isotonic saline of pure broth culture. The bacteriostatic/cidal properties of each was determined for each microorganism.