2 ms·

You can’t possibly say it’s untrue because long term effects have not been studied for this device but it is a documented fact that screens aren’t good for us.

• crazygringo 4y ago
  Yes I can say it's untrue because it's simple physics. You can literally measure the light spectrum from sunlight and from LED screens. Daytime sunlight is full of blue light, far more than from a screen. It's physically impossible for LED's to do some sort of damage that doesn't happen from regular walking around outdoors, because it's 100% known what they emit. And an inch from your retina makes zero difference when the brightness is much less than daytime and the focal length is far. Because with lenses, as far as your eyes are concerned, the light is coming from far away. You don't need to study long-term effects when the physics are 100% known here. Again, blue light close to bedtime is the only thing that's different, and that's trivial to fix.