Visible Light Transmission (VLT) Explained: How to Choose the Right Sunglass Lenses
Visible Light Transmission (VLT) VLT refers to the percentage of visible light that passes through the lens. It not only determines how dark the lens appears, but also directly affects your visual experience in different environments.A simple way to understand it: Lower VLT → Less light enters the eye → Stronger shading Higher VLT → […]