In vitro deposition of lysozyme on etafilcon A and balafilcon A hydrogel contact lenses: Effects on adhesion and survival of Pseudomonas aeruginosa and Staphylococcus aureus

In vitro experiments show that concentrations of active lysozyme on the surface of the etafilcon A lens, unlike the balafilcon A lens which showed negligible absorption, may be sustained from the lens matrix. Lysozyme deposited on hydrogel lenses had marked activity against M. luteus but relatively minor effects on the primary adhesion of P. aeruginosa and S. aureus.