Polarized light is light reflected on a smooth and flat surface like a road, water, snow or sand. It then becomes polarized and creates a glare. Polarized lenses have a distinctive polarized filter designed to eliminate that glare, which causes visual discomfort and eyestrain.

At the microscopic level, this polarized filter is made of horizontal molecular chains that act like a venetian blind absorbing the horizontal polarized light while letting through the useful vertical light. Unlike regular tinted lenses, polarized lenses do not simply reduce the amount of visible light transmitted into the eyes through the lens, they also offer maximum UV protection, and optimal eye comfort by preventing glare and improving contrast.