Im pretty sure you guys know sunglasses exist, but did you know what is polarized sunglasses? Well, it's time to explain what is polarized sunglasses to you all.
Benefits of Polarized Lenses
First things first, why are polarized lenses unique? Well, they’re coated with a special chemical film that helps reduce glare. We all know that estranged feeling of being blinded by glare, so we don’t necessarily have to go into detail about how glare happens other than light from the sun is reflected off a solid surface or water. By having this chemical film on polarized sunglasses, you are able to see more clearly. Not to mention, it helps reduce harmful effects from UV light.
How Polarization Works
Polarization blocks glare, because glare isn’t ideal when you’re trying to walk your dog on a busy street. Like stated before, the sun’s rays reflect light in every direction and when a ray hits a flat surface, the reflected light shines back at your eye which causes glare.
When wearing sunglasses without polarization, the lenses only reduce the amount of light that is transmitted through the lens both horizontally and vertically. If you choose polarized lenses, though, the glasses absorb horizontal light waves, while still allowing vertical waves to pass through. Basically light only travels in one direction through polarized lenses which then eliminates glare. You can thank us for making your road trips and boating experience better.
Polarized Does Not Mean UV Protection
Remember that although most polarized lenses also come equipped with ultraviolet protection, polarization by itself does not protect your eyes from harmful UV rays. According to the Glaucoma Research Foundation, “polarization is unrelated to UV protection, so you still need to ensure UV absorption of the lenses.” Fortunately, most quality glasses that feature polarized lenses, also come with protection against ultraviolet rays.
Polarized Sunglasses for Health and Style
Wearing sunglasses allows you to show your fashion sense and express your personality. But for your eye health, choose sunglasses with UV protection and polarized lenses. They’re available in a variety of and you can get polarized lenses with fashionable features such as gradient tint or mirrored coating. Polarized options are also available on photochromic sunglasses, which means the tint darkens in the sun.
Liquid crystal displays (LCDs)—which are common on cell phone screens, auto dashboards, clocks and other instrument displays—can be difficult to see clearly when wearing polarized lenses. They are especially troubling for pilots who may have trouble reading their instrument panel and also viewing objects in the sky, including other planes.
Because polarization blocks some light, night time use isn’t recommended for safety reasons.
Polarized sunglasses are available at numerous retail locations, from your local drug store to high-end sunglass retailers. If you’re buying these glare-blocking sunglasses to reduce eye strain, make sure you’re getting your money’s worth. Consult with a professional to help ensure you receive accurate information about your eyewear. Also, depending on the level of strain and discomfort your experience with sunlight, there may be another issue that your eye doctor should know about.
Consult with a qualified eye care professional today if you have questions about how polarized lenses work and if they’re right for you.