The patented surface modification technology incorporated in manufacturing Air Optix for Astigmatism provides that no debris or protein buildups stay on the lenses. What's more, they allow up to 7 times more oxygen to the surface of your eyes keeping them fresh and healthy for the whole day, during their whole use period. Special Precision Balance 8|4 Lens Design keeps your vision crisp and clear even after blinking, which can be a problem in regular toric contact lenses. The wide optic zone of the lens makes them excellent in their job which is to correct your astigmatism at all time. New generation silicone-hydrogel material used in Air Optix for Astigmatism guarantees great comfort and healthy look of your eyes all the time.