Proclear lenses are made with the help of PC Technology™ creating a unique material containing molecules of phosphorylcholine (PC) which is a substance generally found in human cell membranes leading to unmatched level of comfort all day long. These molecules attract and remain surrounded by water keeping the lenses moist and comfortable even after wearing continuously for 12 hrs. These lenses are certified by FDA regarding improved comfort for contact lens wearers with mild discomfort or dryness during lens wear.