... machine in Suzhou (Freeform Seiko BP-01) Gerber Freeform Machine RX Lens Range:Single Vision:1.499,1.56,1.61,1 ... Kids:1.56,12mmBifocal Lens:1.499,1.56Progressive Lens for Adult:1.499,1.56,1.61 Rx Lens RangeIndexProduct DescriptionPower Range Photochromic ... .00D~-8.00D,CYL-4.00D,1.00—3.00W5 Progressive lens+6.00D~-8.00D,CYL-4.00D,1.00—3 ... -4.00D,1.00—3.00 1.67 high power RX lens