Air Optix for Astigmatism is a new toric monthly lens from CIBA Vision with silicone hydrogen material. It corrects astigmatism & has extra high oxygen permeability. This ensures that eyes stay white & healthy. Air Optix for Astigmatism has a unique toric lens design. The edge of the lens is extra thin to provide comfort & excellent sight sharpness from morning to late evening. The lens is approved for overnight wear for up to 6 nights in a row.