... me for detailsBesides, we can supply you the lens as following: 1. GLASS LENS (index 1.523, 1.70, uncoated & A/R, ... size 65/70 mm)2. CR-39 LENS (index 1.499, 1.56, 1.61, uncoated, H/C, H ... , flat-top bifocal, blended bifocal and curve bifocal lens)4. PROGRESSIVE LENS. We are exporting products to many countries of Western ... promoted to our mutual benefits as time going. RX optical lens