Aktivoptik, a medium-sized German optical retailer base in Bad Kreuznacht, increased its total sales by 17.5 percent to over €20 million in the first half of this year, as compared to the first half of last year. In the eyewear segment, total sales increased by 15 percent, whereas total sales increased by 79 percent in the segment of hearing aid devices. Aktivoptik is one of the top ten optical retailers in Germany. In the last ten years, Aktivoptik invested heavily in the segment of hearing aid devices.