Does Yellow Lenses Block Blue Light
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So do blue light blocking glasses really make a difference for all of us who stare at a screen 8 plus hours per day.
Does yellow lenses block blue light. Mood is also affected by light and sleep. Moreover you can even use your mobile phones at night with these glasses because with them the screen light won t cause any harm or danger to your vision. Again not all blue light needs to be blocked. Therefore blocking blue light could create a form of physiologic darkness.
Conversly they do suggest that their yellow lenses filter low levels of blue light and amber lenses filter moderate levels of blue light. Harmful blue light is only a 40nm part of the spectrum. Orange lenses typically block 98 99 of blue light. Note that yellow lenses do not block 100 of blue light because not all blue light is bad.
Your body needs some blue light during the daytime in order to remain alert and active. Yes yellow and brown both tinted glasses work great for blocking the blue light and this is the best solution for someone who is a computer geek. When shopping for shades that also block blue light look for yellow orange dark amber copper or brown lens tints. You can even get blue light blocking lenses for your prescription glasses.
While copper lenses block blue light better than the other lens tints they may be too dark for many to wear inside. Lenses with clear slight yellow tint or yellow lenses are best for daytime use as they specifically target the 450nm and below spectrum of blue leaving the other beneficial wavelengths alone. Therefore mood might be affected by blue light blockade. The intensely tinted yellow lenses will work well with this chart but light amber blue block and ar blue block wont because the beneficial blue light is allowed through.
These colors work to filter blue light and heighten contrast making them great for indoor and outdoor activities. Yellow amber brown and bronze lenses still block enough blue light without the dimming effect and can still produce some of the same benefits. Because the timing and quantity of light and darkness both affect sleep evening use of amber lenses to block blue light might affect sleep quality.
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