Lighthouse International has named Mark G. Ackerman to be its new president and chief executive, effective this week. He held various management positions at St. Vincent's Hospital and Medical Center in New York between 1983 and 2007, including chief administrative officer of its successor corporation, St. Vincent's Catholic Medical Centers of New York, and president of that group's foundation. He succeeds Ted Francavilla, a board member who had been filling in as acting president and CEO since May. Lighthouse International is a non-profit organization that has been helping to provide vision care, research and services for the visually impaired for just over 100 years.