PolorVision Driving Glasses :- Sunlight, or ambient light from lamps and headlights, scatters in many directions, especially when it reflects off flat surfaces such as wet roads, vehicle hoods, windshields, or metal surfaces. That reflected light tends to become polarized —that is, the light waves are more oriented in a particular plane (often horizontal). That horizontally polarized component creates the discomfort we call glare.