German Engineering by Rodenstock Ashburton Eyecare uses precision optical lenses from the house of Rodenstock. Rodenstock utilises its 80 years of German lens manufacturing heritage and its vast R&D commitment to create some of the clearest, user-friendly multifocals available today. Cutting-edge manufacturing techniques are now able to precisely create the lens surfaces that allow wide fields of vision with minimal distortion in multifocal lenses.