Bausch + Lomb PureVision contact lenses are the first lenses made using our unique AerGel material, delivering exceptional vision, with outstanding comfort and health. Their unique optical design makes them the only lens that successfully reduces spherical aberration - a natural condition that causes objects to appear blurred or hazy - and the special rounded edge profile ensures a comfortable fit on your eye. With PureVision lenses you'll always experience life with visual clarity and comfort that fits the demands of your lifestyle. AerGel makes PureVision lenses exceptionally healthy. They allow natural levels of oxygen to reach your eyes, and resist protein buildup - your eyes stay comfortable all day long and well into the night.