Are ALL the high-index glasses lenses UV protected? I've read something about 1.67 and 1.74 plastic lenses repelling UV naturally (due to their physical proprieties). Is this right? If not, why not? -
Are ALL the high-index glasses lenses UV protected? I've read something about 1.67 and 1.74 plastic lenses repelling UV naturally (due to their physical proprieties). Is this right? If not, why not? -
![Understanding When 1.74 High Index Lenses are Recommended for Your Eyewear Needs | Rx Prescription Safety Glasses Understanding When 1.74 High Index Lenses are Recommended for Your Eyewear Needs | Rx Prescription Safety Glasses](https://rx-safety.com/wp-content/uploads/2023/12/VERTICAL_1-blog-understanding-when-1-74-high-index-lenses-are-recommended-for-your-eyewear-needs-RX-Safety.jpg)