Sunglasses are an integral part of the summer outfit. They are not only fashion accessory, but their role is much more important which some people don´t even have to realize. They provide protection against harmful UV rays. One of the protection is use of UV filter. And other protection ? Do we know that feeling when light reflects off of surfaces such as lakes or cars, the light waves align in horizontal patterns, creating glare ? This can be also eliminated and we will tell you how.
How does it work ?
To explain function of polarized lenses we need to start from the beginning. Sunlight is scattered in all directions, but when it hits a flat surface, light is reflected and becomes polarised. This means the light is more concentrated and usually travels in a horizontal direction. This intense light can cause blinding glare and reduces your visibility. Light can reflect off a number of different flat surfaces, including water, snow, cars and roads. When light is reflected it travels in a horizontal focus, making it difficult for us to see. The unique filter in polarised lenses block out the intense glare that follows and allowing only vertical light to enter your eye.
Keep in mind
When choosing sunglasses, we should always focus on what they offer us. Practically speaking - the fact how stylish they are should be secondary. So pay attention to proper UV-blocking and polarized lenses. Many people think that some cheap sunglasses that we can get from farmer´s market will do the job. However, this is a big mistake that can cause unpleasant eye problems. How do we find out that our sunglasses are polarized ? If you want to check that your sunglasses are polarized, simply hold them in front of your face, look at your smartphone screen or any flat-panel computer display, and gently move your glasses up and down from right to left in a teeter totter motion. If the image disappears or you notice changes in brightness as they move, then your glasses are polarized.
Style and functionality
Of course your functional eyewear can be stylish piece as well. If your sunglasses feature UV-blocking and polarized lenses, we can expect high-quality as well as stylish goggles. This is of course relative, because we all have slightly different ideas about it. So if the fashion is your thing, simply choose the ones that attract you the most. However, if we want good protection too, do not forget about these features which must come hand in hand with lenses used.