Home > Company > Single Vision DAGAS Progressive lenses provide a great solution for people who want to escape the limited correction that most lenses provide. As their name suggests, progressive lenses provide clearer vision not just for near and far, but also for all distances in between without any abrupt changes or visible lines in the lens. Products : DAGAS ND 1.50 PROGRESSIVE DAGAS ND 1.56 PROGRESSIVE DAGAS ND 1.60 PROGRESSIVE DAGAS ND 1.67 PROGRESSIVE