Spectaris, the German optical industry association, feels that there is ample room for market development in sports eyewear. According to its estimates, 15.6 million German residents who need vision correction and practice sports don't use sports eyewear or sport-specific contact lenses. ZVA, the German opticians association, recently pointed out that about half of all ski accidents can be attributed to poor vision. A total of 41.6 million people are wearing eyeglasses in Germany, says Spectaris. Contact lenses are worn by 3.4 million people, but 13.2 million adults have sunglasses.