Promising antimicrobial activity

Antimicrobial-coated contact lenses may lower the risk of CL-related infections according to a 'promising' study from The University of South Wales, Sydney.

The study showed that CLs to which peptide melimine had been molecularly bonded could be safely worn by humans, following successful trials in rabbits. Human volunteers wore the melimine-coated lenses or uncoated lenses with similar fitting characteristics for one day.

There were no differences in redness of the eye, and comfort ratings were similar, although the coated lenses increased corneal staining. The day after wear, the melimine-coated lenses, which have broad-spectrum antimicrobial properties, were still active against Pseudomonas and Staphylococcus bacteria in culture. Researchers added that whether the coating could reduce CL-related adverse events during wear, especially extended wear, required more clinical trials. It's safe to say there is every likelihood of these taking place.