Contact lenses are worn by millions of people worldwide and many more have been implanted with intraoccular lenses (IOL’s)  to replace the natural lens in the eye after afflictions with glaucoma or other sight impairment diseases. The degree of wettability or hydrophilicity of the polymeric materials used to make these devices is an important issue that contributes to the functionality of the product. Issues such as comfort, protein deposition, lipid and bacterial adsorption, oxygen permeability, and ease of use determine the ultimate success of the product and must be carefully considered when engineering a new device. Given the proper choice of a polymeric lens material that meets the criteria for strength and durability, the surface properties of these materials can make the difference between success and failure in the marketplace. To characterize these materials, wettability analysis by the Dynamic Contact Angle (DCA) technique is now an established tool widely used throughout the industry.