ZVA, the German opticians' association, reports that consumers voted opticians the best retail sector in Germany in 2018. And German opticians retain their top spot in the overall ranking of the customer monitor 2019. Conducted from October 2017 to July 2018, the cross-industry customer orientation study included over 31,000 consumer opinions on the quality, reliability and positioning of companies in 26 industries. Top-ranking industries can boast that more than 73 percent of their customers are “completely satisfied” or “very satisfied.”