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  2. Oct 23, 2020 · 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.

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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.
  3. How to Tell if Sunglasses Are Polarized. Everyone should own a pair of polarized sunglasses. They cut down on glare, making it easier to see clearly and reducing strain on your eyes. While polarized sunglasses are extremely popular, many brands still make non-polarized versions.

  4. Apr 2, 2024 · If your sunglasses are polarised, the screen will likely darken significantly or turn black as you move your head. A lack of any significant change instead indicates that there’s no polarisation on the lenses.

  5. Mar 14, 2024 · There are five different ways that you can check to see if your glasses are polarized: the computer screen method, water method, driving method, appearance method, and nonpolarized comparison method. We recommend trying multiple of these methods to determine if your sunglasses are polarized.

  6. Jul 27, 2023 · If your sunglasses are polarized, then you should be able to see through the glare and into the water. Compare two pairs. If your friend has polarized sunglasses, you can compare them to your own shades to see the difference. Hold them up and look through the lenses at the same time. Then, rotate the glasses about 60 degrees.

  7. Apr 2, 2024 · Look through both sunglasses and tilt the polarized pair 90°. When two polarized 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 polarized. Otherwise, they’re regular sunglasses.

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