George Mahaffey has been appointed president and CEO of San Diego-based Clarify Medical. Mahaffey will also serve on Clarify’s board of directors. He takes the place of Rex Bright, who was named interim president and CEO in February. Bright will continue to serve on the board. Clarify is commercializing a light therapy device that has been cleared by the FDA for treating chronic skin conditions, including psoriasis and eczema.