How do polarized sunglasses work?
When you go outside, you may experience glare or a bright light that can make it hard to see or be comfortable. Wearing polarized sunglasses can protect your eyes and vision.
Sunlight is scattered in all directions, but when it hits a flat surface, light is reflected and becomes polarized. This means the light is more concentrated and usually travels in a horizontal direction. This intense light can cause blinding glare and reduce your visibility.
Polarized lenses can shield your vision while you’re outdoors, which may be helpful if you spend a lot of time in the sun. What are polarized lenses, and why would they be useful to you?
How Polarized Lenses Work
When light is reflected off various flat surfaces, including water, snow, cars and roads, it travels in a horizontal focus, making it hard for us to see. Polarized lenses have a special filter that blocks out the intense glare of reflected light and allows only vertical light to enter your eye.
Polarized lenses can make bright light conditions easier to see in. If you wear them, you may notice a rainbow effect on car windows. That’s because of the pattern caused by the tempering process.
Similarly, you may notice dark horizontal lines along the rear car windows when wearing polarized lenses. This is caused by sections of the glass that partially polarise light on a horizontal axis. Since your lenses have a vertical axis, they cannot see that light and so it appears to you as dark horizontal lines. Essentially, you are filtering out that light with 2 separate filters that are perpendicular to each other. One filter blocks all the light traveling vertically and the other blocks all of the light travelling horizontally.
The result? Nothing gets through the combined filters. It doesn’t affect your clarity of vision.
Why might you need to wear polarized sunglasses?
Certain types of lenses are useful for activities such as driving, as well as for people who spend a lot of time outdoors, such as anglers or beachgoers. These lenses are able to block the glare from sunny weather and wet roads, making it easier to see while working or enjoying the beach.
If you are sensitive to light, or if you have had surgery to treat cataracts, polarized sunglasses can cut down on the discomfort caused by bright light.
Woodies lenses are available in a range of different colors to enhance your style and color perception, making it easier for you to enjoy optimal visual comfort.