lenses Archives - The What Experts

What is Vlt in Sunglasses

September 24, 2023 by admin

VLT, or visible light transmission, refers to how much light is able to pass through a pair of sunglasses. A higher VLT means more light is able to pass through, making the glasses better for lower light conditions. Conversely, a lower VLT means less light is able to pass through, making the glasses better for brighter conditions. Understanding VLT is important when choosing the right pair of sunglasses for your needs.

What Are Anti Fatigue Lenses

June 30, 2023 by admin

Anti-fatigue lenses are designed to enhance visual comfort and reduce eyestrain caused by extended computer use. Adapted from progressive lenses, they offer a wider area of clear vision for reading small print, as well as a slightly blurred section at the bottom of the lens to relax the eyes while looking at the screen. These lenses also provide blue light filtering to diminish the impact of harmful rays emitted by digital devices.