The German opticians' association, ZVA, has a new chief executive from this month. Jan Wetzel succeeds Joachim Goerdt, who retires after working for 31 years at ZVA. Goerdt become managing director of ZVA in March 1983 and became chief executive in April 1990. Wetzel, who has been legal adviser to the German opticians' association for four years, began to assume his new functions on Dec. 1 last year.