You might be wondering if there is a contact lens for extreme prescriptions. Well here at Ezyvision we endeavor to stock an exhaustive range of lenses. So the answer is yes, there is a lens. The Biofinity XR is available in prescriptions from -12.50 up to -20.00 and from +8.50 up to +15.00. With all the added features of the Biofinity classic lens, you can know the enjoyment of being able to wear CooperVision contacts, ENJOY LIFE.