Aktivopik, a German optical retailer that celebrated its 25th anniversary last year, said its sales grew by 25 percent in 2014, well over the 3.5 percent growth of the German retail market, reaching €48.3 million. Sales rose by 17.7 percent in ophthalmic optics and by 85 percent for hearing aids. Aktivoptik exhibited at the Opti show in Munich for the first time in January to win over new franchisees. It was highly praised last December by a German consumer audit agency, Stiftung Warentest, for the quality of its glasses and the advice that its partner opticians give to customers.