DAO, the German ophthalmic optics company, not to be confused with the big Chinese optical chain by the same name, has expanded its executive board. Verena Burghardt, responsible for finances, human resources and business organization, and Johannes Hoffman, responsible for DAO's product line, production and logistics, will be supported by Stefan Rüdiger, who is in charge of distribution and marketing. Rüdiger joined the company at the beginning of September after working for 15 years as an optician for different companies in various positions before joining Essilor, where he ran its German subsidiary until one year ago.