There’s nothing more soothing than wearing a pair of sunglasses on a hot sunny day. It’s hard to be able to see anything when you have to squint your eyes to see. Imagine having to do this when you’re driving your car or when you have to work outside for some time. One of the common add-ons for sunglasses is UV protection which doesn’t just shade your eyes it also blocks a certain percentage of UV rays from damaging your eyes. That’s not all. Polarized sunglasses are popular because of the so-called reduced glare factor.
What does it mean when your sunglasses are polarized? Polarization has something to do with the behavior of light waves when they strike a certain object. For instance, light reflected from shiny transparent materials like the smooth waters of the ocean are naturally horizontally polarized. When you apply a polarizing filter at a certain angle and you look through this filter at the ocean (for example), the light glinting off its waters will be reduced. In fact, if you look through the water at a certain angle with the polarizing filter, the water itself will seem more transparent. This is the reason why fishermen prefer wearing polarized sunglasses than normal sunglasses.
You may also use polarized sunglasses when you’re driving as they can significantly reduce the glare coming from the reflected light on the trunk door, rear window and roof of the car in front of you. However, polarization will only be effective at a certain time of the day or when the sun is in front of you (which is why you are able to see its light reflecting off the car ahead of you). Polarized sunglasses can also work when it’s raining as it would be able to simulate the polarizing effect of the wet road like that of the ocean.