ProClear Toric contact lenses are beneficial to lens wearers who experience discomfort or dryness. Proclear Toric provide exceptional comfort and clarity to people who have astigmatism. Thier patented PC Technology creates a unique material containing molecules of phosphyrylcholine - a substance found in human cell membranes. These molecules attract water, keeping Proclear contact lenses moist and comfortable even after 12 hours of wear. Proclear lenses are the only contacts with FDA clearance for the claim: “may provide improved comfort for contact lens wearers who experience mild discomfort or symptoms relating to dryness during lens wear.” Key Benefits: EXCEPTIONAL ALL DAY COMFORT OUTSTANDING VISION QUALITY PATENTED PC TECHNOLOGY CONVENIENT MONTHLY REPLACEMENT SCHEDULE *Open boxes or vials cannot be returned or exchanged.