3 Aug 17
Polarized Lenses Take The Sting Out Of Sunlight
As anyone who has ever skied on a bright and clear winter’s day knows, it’s not the sun that makes it hard to see, but the glare that results from sunlight reflecting off the fresh powder. Sources of glare like water, roadways or other solid, shiny surfaces can make life difficult for anyone, particularly those with sensitive eyes or a susceptibility to migraines.
That’s why polarized lenses have become increasingly popular. They contain a special filter that blocks this type of intense reflected light, reducing glare by allowing only direct light to enter the field of vision. Like other sunglasses, polarized lenses also block the sun’s harmful UV rays. Why are UV rays so harmful? Because excessive exposure to them can cause cataracts and macular degeneration – the primary cause of vision loss among senior citizens.
The concept of polarization first began with cameras. In 1929, Edwin Land invented Polaroid, the world’s first polarizing material for commercial use. The company he founded eight years later – the Polaroid Company – would later produce the Polaroid Day Glasses, the first sunglasses with a polarizing filter.
These days, polarized sunglasses are ubiquitous and can be found in field and stream, from mountains to shopping malls. Polarized lenses can reduce the side effects of glare (like eyestrain) and allow eyes to feel more comfortable and well rested. They can reveal colors and images with an astounding level of detail.
According to the American Optometric Association (AOA), sunglasses should:
- Block 99-100 percent of UVA and UVB Rays
- Screen out 75-90 percent of light
- Wrap around your head to give your eyes max protection from all angles
But it’s not just sunglasses that are getting this treatment anymore. Even protective eyewear is becoming polarized, which allows only direct light to enter the field of vision, making tinted safety glasses a great choice to wear around water, roadways and shiny equipment. With Ergodyne, for instance, wearers can choose from one of three polarized tints in the Skullerz® offering (smoke, copper and G15).
Although many people choose polarized lens for sport (skiing, fishing, etc.), your crews need them for safety. You may pay a bit more for premium safety sunglasses, but it’ll be money well spent. After all, on the job is no place to dare the glare.