Which lens type inherently possesses UV filtering properties?

The correct answer is that both Polycarbonate and Trivex lenses inherently possess UV filtering properties. Polycarbonate lenses are made from a highly impact-resistant material that not only provides excellent protection from physical damage but also includes built-in UV protection. This means they can block a significant amount of harmful ultraviolet rays, making them a popular choice for safety eyewear and outdoor use.

Trivex, on the other hand, is another lens material that offers similar properties. It is lightweight, impact-resistant, and also includes UV filtering capabilities inherently within its composition. This dual functionality is essential for protecting the eyes from the damaging effects of UV radiation while also providing a lightweight and high-quality vision solution.

The key distinction here is that both of these lens types have UV protection as part of their material structure, as opposed to other lenses, like plastic CR-39, which may require additional coatings for UV protection rather than incorporating it in their material. Thus, highlighting the fundamental feature of both Polycarbonate and Trivex related to UV filtering is critical for understanding why the answer is correct.