The role of preservatives in contact lens solution is to what?

Preservatives in contact lens solutions play a critical role in maintaining the sterility of the solution and preventing microbial contamination. Their primary purpose is to inhibit the growth of bacteria, fungi, and other microorganisms that could cause infections or complications in individuals who wear contact lenses. By keeping microorganisms from multiplying, preservatives ensure that the solution remains safe to use and that the lenses are hygienic when applied to the eyes.

While other factors like lens comfort, clarity, and pH adjustments are important aspects of contact lens care, they are not the primary function of preservatives. Preservatives are specifically formulated to extend the shelf life of the solution and protect the wearer from potential eye infections, making them crucial in the management of contact lens hygiene.