Peter Brierley is the new president of DAC International of California, replacing Rod Keller, who has been interim president since last October upon the retirement of Jim Drain. Keller will go back to his role as vice president for engineering and operations. Brierley has a 40-year history in the industry, including leading roles at Bausch + Lomb, Dow Corning, Allergan Optical and CooperVision. In several of these positions, he worked with DAC International to develop various systems.