Pristine Eye Hospitals

Complete Guide to Eyeglass Lens Materials (CR-39, Polycarbonate, Trivex, High-Index) -- CR-39, polycarbonate, Trivex, and high-index lenses all correct vision well, but they are not equal in clarity, safety, thickness, or price. CR-39 is usually the clearest and cheapest, but thicker and less impact-resistant. Polycarbonate is thinner and very tough, so it suits children and active lifestyles. Trivex is a premium “best balance” option with strong -- CR-39, polycarbonate, Trivex, and high-index lenses all correct vision well, but they are not equal in clarity, safety, thickness, or price. CR-39 is usually the clearest and cheapest, but thicker and less impact-resistant. Polycarbonate is thinner and very tough, so it suits children and active lifestyles. Trivex is a premium “best balance” option with strong impact resistance and better clarity than polycarbonate. High-index lenses are best for stronger prescriptions because they make glasses thinner and lighter, though they usually cost more and may show more color fringing. COMPLETE GUIDE TO EYEGLASS LENS MATERIALS (CR-39, POLYCARBONATE, TRIVEX, HIGH-INDEX) When patients shop for glasses, they often focus on the frame first. That is natural. But in day-to-day use, the lens material often matters even more. The material influences how thick your lenses look, how heavy your glasses feel, how well they stand up to drops or sports, how much glare you notice, and how much you pay. In other words, two pairs of glasses wit... Aug 22, 2026 Learn more