Certified Paraoptometric (CPO) Practice Exam

Selecting polycarbonate lenses for maximum UV protection is a well-informed choice because these lenses naturally provide a high level of protection from harmful ultraviolet (UV) rays. Polycarbonate material blocks 100% of UVA and UVB radiation, making it ideal for outdoor use and for individuals who spend significant time in sunny environments.

In addition to their excellent UV blocking capabilities, polycarbonate lenses are also known for being lightweight and impact-resistant, which further enhances their suitability for eyewear, especially for children and active individuals. This combination of features makes them superior for protecting not only against UV rays but also for overall lens durability.

While other lens options may offer some level of UV protection, they do not universally guarantee the same effectiveness as polycarbonate lenses. Regular glass lenses, for instance, may not block UV rays unless specifically treated for this purpose. Plastic lenses can vary significantly in UV protection depending on their specific treatment, and tinted lenses do not inherently provide UV protection unless they are made with a UV-blocking material. Thus, polycarbonate lenses represent the most reliable choice for ensuring maximum UV protection.