Polarized sunglasses have always been popular among people who spend a lot of time outdoors, especially near water. And for many reasons, polarized lenses are able to block glare from light reflecting off the surface of the water better than any other type of sunglass lenses.
But sunglasses aren’t just for people who love sailing, fishing or going to the beach. Anyone who is facing trouble by glare outdoors can benefit from these advanced sunglass lenses. Polarized sunglasses can be helpful for driving, because they reduce glare from reflections on flat surfaces such as the hoods of vehicles and light-colored pavement.
People who are light-sensitive, including someone who has had surgery (Cataract or LASIK), also will benefit from polarized sunglasses.
How Do Polarized Lenses Work?
Light from the sun scatters in all directions. But when it strikes flat surfaces, the light that is reflected by the surfaces tends to become polarized. It means 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 themselves have a special filter that blocks this type of intense reflected light, reducing glare and discomfort.
Though polarized sunglass lenses improve comfort and visibility, you may encounter some scenarios when these lenses are not advisable because of the reduced visibility. One example is Liquid Crystal Displays (LCDs) found on some digital screens, such as bank automatic teller machines (ATMs) and gas station pumps.
With polarized lenses, you may also find it more difficult to see the screen on your phone, or Global Positioning System (GPS) tablet in your car (depending on the type of screen technology used).
Despite these shortcomings, polarized sunglasses offer great advantages when it comes to decreasing eye strain and discomfort in bright sunlight.
Possibilities With Polarized Sunglasses
Polarized sunglasses with progressives lenses is an excellent choice for people over age 40 who spend significant time outdoors.
Due to the high reduction in reflections from polarized sunglasses, they significant improve your ability to see objects below the surface of a reservoir, lake or sea. (a great benefit for fishing and sailing).
The first step in getting the best possible comfort and performance with any polarized sunglasses, consult our Optometrist or Optician at EMM3 Visioncare to find out what is the best for you.
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