Welcome to the pf forums. This way the light waves reflected by a surface at a certain angle get blocked out. Polarised Glasses For Sale Off 69 Polarized sunglasses are important because they cut down even more on the amount of light entering your eyes, including harmful ultraviolet rays from the sun. How do polarized sunglasses work physics . A polarized light question for the physics mavens: We use polaroid sunglasses to minimise 'glare'. If you tilt your head sideways, this horizontally oriented glare passes through the glasses, making the surface look brighter. Therefore, light reflected from horizontal surfaces is thus partially or totally linearly polarized horizontally. Then teams use their own combinations of the provided materials to design and create their own prototype sunglasses. How polarized lenses work for you. In most cases the orientation of the polarized lenses is vertical. They work by using the physics of light. How do polarized sungla...