An older question asks if Gunnar glasses actually work but I am interested in whether the same benefit can be obtained from reducing the blue light emitted by a LCD screen.

Whilst some mobiles and tablets offer a 'night mode' I am interested in office workers with laptops or traditional PCs/Macs with large LCD screens, using them for 7+ hours a day.

Would adjusting the blue output of those screen give the same reduction in eye strain as wearing Gunnar (or similar) glasses? I cannot track down any reliable, independent sources which verify this one way or the other.

Please ignore the aspect common to all glasses where they may stop the eyes drying out to some extent.

closed as off-topic by Giter, ff524, Oddthinking Jan 24 at 4:10

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  • 3
    I think you need some notable source that makes this claim. Skeptics isn't a "prove my hypothesis" site, it's a "prove this claim" site. – TheWanderer Jan 23 at 12:20