Which lens material is known for being lightweight yet highly impact resistant?

Trivex is known for being lightweight while also offering high impact resistance, making it an excellent choice for eyewear, particularly in safety glasses and children's eyewear. Its composition provides a lower density than glass and high-index plastic materials, which results in lighter lenses that don’t sacrifice durability.

Additionally, Trivex has a unique structural makeup that enhances its ability to withstand impacts—it can often resist breakage better than other materials, making it ideal for active lifestyles and environments where safety is a concern. The optical clarity of Trivex is also noteworthy, providing excellent vision without significant distortion.

While polycarbonate is also lightweight and highly impact-resistant, Trivex has superior optical clarity and is less prone to scratches than polycarbonate, which can affect long-term performance. High index glass, while offering thinner lenses, does not possess the same level of impact resistance and tends to be heavier than both Trivex and polycarbonate. CR-39 is lighter than glass but lacks the high impact resistance that Trivex is specifically noted for.