Are you nearsighted or farsighted to such a degree that vision correction with contact lenses has been difficult to find? If so, CooperVision Biofinity® XR (extended range) sphere lenses may be the answer. Thanks to CooperVisons's exclusive Aquaform® Technology, Biofinity XR lenses allow plenty of oxygen to pass through to your eyes. And their natural wettability won't rinse off. You'll enjoy excellent vision with a soft, comfortable lens that's healthier for your eyes.