Proclear EP is the first and only contact lens designed specifically for those who are just beginning to have difficulty reading small type and seeing objects up close—commonly known as the early stages of presbyopia. Proclear EP is also an incredibly comfortable lens, thanks to patented PC Technology™, which creates a unique material containing molecules of phosphorylcholine (PC), a substance found naturally in human cell membranes. These molecules attract and surround themselves with water, keeping Proclear EP lenses moist and comfortable all day long.