Product Description PureVision 2 HD are monthly silicone hydrogel contact lenses designed by Bausch & Lomb to give you optimal comfort and visual clarity. Made from Balafilcon A, these lenses have a water content of 36% and allow high levels of oxygen to reach the eyes. They also bind your tears to the surface of the lens for moist and hydrated eyes. High Definition Optics are featured in these lenses to reduce halos and glare. You can expect excellent clarity with PureVision 2 HD contact lenses which are designed to minimise spherical aberrations. ComfortMoist Technology allows for a thinner lens and enhances comfort during wear with these monthly lenses. As monthly wear, these lenses must be removed, clean and stored in contact lens solution every night so that they are fresh to wear the next day. Need more optical advice help? Ask our optical experts