PureVision contact lenses are made with the AerGel material, providing an exceptionally comfortable feel combined with outstanding, clear vision. With optimum oxygen being able to reach the eye through the PureVision lenses, your eyes will remain healthy and fresh while you wear the contacts. Also, PureVision contact lenses have been designed to fit comfortably on your eye, with a rounded edge profile to be smoothly and securely applied. A bonus to the great design of these contacts is their natural resistance to protein build-up around them, keeping your vision clear and eyes comfortable.