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There’s a lot of hype around blue light blocking glasses and a million brands to choose from, but how can you tell if your glasses are actually blocking blue light? Thankfully, you don’t have to be an optometrist to figure it out since there are a number of tests you can do at home to judge the quality of your lenses. We’ve put together a helpful list of ways to determine if your glasses are really blocking blue light, whether they’re clear computer glasses or darker orange lenses for nighttime. If you’re ready to kick blue light to the curb, read on!
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QuestionWhat if my lens is reflecting violet light and green?Jollyjellies19Community AnswerThey are most likely ultraviolet (UV) Glasses, which block ultraviolet light.
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Tips
- If a manufacturer won’t provide a report or you’re suspicious of the accuracy, take your glasses to your eye doctor or an independent company with a lab-grade spectrometer. They’ll be able to tell you how much blue light is being blocked and at what frequencies. [9] X Research sourceThanks
- The price of blue light blocking lenses doesn’t always correlate to how effective they are. However, lenses that block at least 30% of blue light and include anti-reflective coatings are rarely cheaper than about $40.Thanks
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Warnings
- Some companies provide a “blue light pen” (a small flashlight that shines blue light) you can shine through the lenses of their glasses as proof that they block blue light. However, these pens are often emitting violet light (right next to blue on the light spectrum) and not blue. This marketing technique is widely regarded as a scam. [10] X Research sourceThanks
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References
- ↑ https://diamondlobby.com/tech-guides/how-test-blue-light-glasses/
- ↑ https://diamondlobby.com/tech-guides/how-test-blue-light-glasses/
- ↑ https://www.lookoptic.com/blogs/the-look-blog/how-to-test-blue-light-glasses
- ↑ https://knowtechie.com/how-to-test-if-my-glasses-block-blue-light/
- ↑ https://knowtechie.com/how-to-test-if-my-glasses-block-blue-light/
- ↑ https://knowtechie.com/how-to-test-if-my-glasses-block-blue-light/
- ↑ https://news.iu.edu/stories/2020/10/iub/releases/15-blue-light-glasses-improve-sleep-productivity.html
- ↑ https://health.clevelandclinic.org/do-blue-light-blocking-glasses-actually-work/
- ↑ https://journals.lww.com/optvissci/Fulltext/2019/07000/Spectral_Evaluation_of_Eyeglass_Blocking.8.aspx
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