... me for detailsBesides, we can supply you the lens as following: 1. GLASS LENS (index 1.523, 1.70, uncoated & ... flat-top bifocal, blended bifocal and curve bifocal lens)4. PROGRESSIVE LENS. We are exporting products to many countries of ... have any comments OR SPECIAL REQUIREMENTS/NEEDS on our lens or quotation, please feel free to let me know ... to our mutual benefits as time going. RX optical lens