Blue light blocking glasses, monitors and apps probably aren't doing much for your eyes

If you're a glasses wearer you've probably been upsold blue light filtering lenses for your glasses. There's even some monitors that claim to be "eye friendly" by filtering blue light and many devices now automatically "warm" up the colour temp at night time to help sleep. The theory is that displays blast blue light at your eye balls all day when in nature it only happens during daylight. Exposing your eyes to all that blue light for more than day light hours is bad for you. According to this article in The Guardian, all these claims are not backed up by any serious scientific investigation. Sleep might be impacted a little, but it's hard to tell if it's the blue light or the fact you're using a device before bed that stresses you out.