The material used in your sunglasses lens will affect their clarity, durability weight and cost. 1. Glass – PROS: Superior optical clarity, high scratch-resistance. CONS: Heavier than others, expensive, glass will "spider" when impacted. 2. Polycarbonate – PROS: Excellent impact-resistance, very good optical clarity, affordable and lightweight. CONS: Less scratch-resistance, slightly less clarity than glass 3. Acrylic – PROS: Inexpensive alternative to polycarbonate, best suited for casual or occasional-use sunglasses. CONS: Less durable and optically less clear than polycarbonate or glass. |
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