Polarized sunglasses can be helpful for driving, because they reduce glare-causing reflections from flat surfaces, such as the hoods of vehicles and light-colored pavement.
Some light-sensitive people, including someone who has had cataract surgery, also will benefit from polarized sunglasses.
How Do Polarized Lenses Work?
Sunlight scatters in all directions. But when it strikes flat surfaces, the light that is reflected by the surfaces tends to become polarized - meaning the reflected light beams travel in a more uniform (usually horizontal) direction. This creates an annoying and sometimes dangerous intensity of light that causes glare and reduces visibility.
Polarized lenses have a special filter that blocks this type of intense reflected light, reducing glare.
Though polarized sunglass lenses improve visibility, you may encounter some instances when these lenses aren't advisable. One example is downhill skiing, where you actually want to see the bright patches of reflected light because they alert you to icy conditions.
Also, polarized lenses reduce the visibility of images produced by liquid crystal displays (LCDs) found on some digital screens, such as bank automatic teller machines (ATMs) and gas station pumps.
With polarized lenses, you also may find it more difficult to see the screen on your phone (depending on the type of screen technology used).
Boaters and pilots also may experience similar problems when viewing LCD displays on instrument panels, which can be a crucial issue when it comes to making split-second decisions based strictly on information displayed on a screen.
Despite these exceptions, polarized sunglasses offer great advantages when it comes to decreasing eye strain and bright sunlight.
Polarized sunglasses: Other considerations
Polarized sunglasses with progressive lenses are a great choice for people over age 40 who spend significant time outdoors.
And polarized sunglasses with photochromic lenses are a great choice for anyone who is frequently in and out of the sun on any given day.
WDO (Weihai Dingxin Optical Co.,Ltd) is one of the top ten optical lens manufacturers in China.
WDO is one of the most Potential Finished and Semi-Finished Optical Lenses factory located in Weihai City, China. It was establish in 1998 with covering 24400 sqm and 280 employees. The annual production and sales of Optical lenses are 30 million pieces, and the annual sales have exceeded 100 million for five consecutive years.
WDO is a member unit of CHINA OPTOMETRIC & OPTICAL ASSOCIATION.
Key & Advantage Products:
Single Vision Lens: CR-39; 1.56; 1.60; 1.67;
Bifocal Lens: CR-39; 1.56; 1.60
Progressive Lens: CR-39; 1.56; 1.60
Functional Lens: Blue Cut, Photochromic; Photomagic +UV420cut, Polarized; Polycarbonate
RX Service: Free Form; Special Coating; Special Power Range
The integrity of the product and the diversity of customer needs complement each other. What we provide is not only technology, sales or product itself, WDO is more concerned about making customers feel our meticulous service and professionalism. So far, WDO products have been exported to more than forty countries and regions around the world.
In the next few years, WDO will continue to optimize and upgrade the production environment and equipment, further optimize the company's management system, give full play to its own advantages, bring better services and value to customers, and help customers grow!
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