Kevin Buehler will be the next president and chief executive of Alcon, effective April 1. He succeeds Cary Rayment, who is retiring but will be a director and non-executive chairman on Alcon's board. Buehler will join him on the board pending a vote at the general meeting in May. Buehler has been with the company for 24 years, currently as senior vice president for global markets and chief marketing officer of Alcon Laboratories, a subsidiary comprising the company's surgical, pharmaceutical and consumer groups.