... many world-known optical companies.We produce single vision, bifocal, progressive, photochromic lens(Grey, Brown), polarized(Grey, Brown and G-15), polycarbonate ... RX lens(uncoated, hard coated, HMC, EMI) including free form, HI-VEX lenses, with index of 1.499, 1.56, 1.60, 1.67, both ... the opportunity to demonstrate our quality service to you. 1.56 Photochromic Lens Single Vision Bifocal Progressive