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    • Testing on a Reflective Surface. Find a reflective surface that produces glare when light is shining on it. You could use a reflective tabletop, a mirror, or other shiny, flat surface.
    • Comparing Two Pairs of Sunglasses. Locate a pair of sunglasses that you know are polarized. If you already have a pair of sunglasses that are polarized, or are at a store with multiple pairs of polarized sunglasses, you can do a comparison test.
    • Using Your Computer Screen. Turn your computer screen to its brightest setting. Most electronics have the same anti-glare technology as polarized glasses.
  2. Apr 2, 2024 · Look through both sunglasses and tilt the polarised pair 90°. When two polarised lenses overlap at opposing angles, they create an almost pitch-black surface. If You can’t see anything through the lenses, then you’ll know they’re polarised. Otherwise, they’re regular sunglasses.

  3. Mar 5, 2020 · The special coating on polarized lenses is highly anti-reflective, working around the clock to reduce reflections, haze and glare. At the right angle, looking at a lake or ocean through polarized sunglasses will allow you to see past most surface reflections and through to the water below.

  4. Oct 23, 2020 · Computer Screen Test. The computer screen test is the easiest way to see if your sunglasses are polarized. Simply hold your Sunglasses up to a computer screen, then rotate 90 degrees. If your lenses become dark or you can no longer see through them, they are polarized. If there is no change, your lenses are not polarized.

  5. Feb 6, 2024 · Polarized lenses have a special coating that reduces glare, especially on reflective areas like water, asphalt or snow. This is especially helpful when you’re driving. And if you’ve had refractive eye surgery like LASIK, polarized lenses are a great choice.

  6. May 26, 2022 · How Can You Tell if Sunglasses Are Polarized? If you aren’t sure whether your sunglasses are polarized, you can find out by trying a few different methods. 1. Hold them up to another polarized surface. Where polarized lenses overlap at opposing angles, they create an almost pitch-black surface.

  7. Apr 12, 2024 · Hold your sunglasses at 90 degrees in front of the screen. Look through the lens overlapping the screen while slowly rotating the frame so they're at the correct orientation. Check whether there's a change in the brightness of the light. If the screen darkens, the lenses are polarised.

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