Exposure to blue light in the evening is believed to suppress the body’s secretion of melatonin. Because of this, it is believed to worsen sleep. So, it is thought that if blue light could be blocked by a person wearing special blue-blocking glasses, sleep could be improved.
Which blue-blocking glasses might be better?
Consumer Reports, an organization that is well-respected for providing unbiased tests of consumer products, tested three blue blocking glasses and found this one to cut out almost all blue light:
Uvex Skyper safety eyewear (orange tinted) (about $8)
Uvex Skyper Blue Light Blocking Computer Glasses with SCT-Orange Lens (S1933X) The other two that they tested did not work that well:
Gunnar Intercept gaming glasses (medium yellow), which cost about $53, cut out only about half of the blue light.
Spektrum Pro Blue Light Blocking Glasses (light yellow), which cost about $40, cut only out about one-third of the blue light.
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