Why filter blue light instead of not emitting it in the first place in a situation involving a computer display and a human observer with no other sources of blue light?
What is the natural science reason to wear blue light eyeglasses instead of just turning one’s computer display’s blue lights off or very low in spaces where there are no other sources of blue light than the screen the person is watching? Suppose that the person has perfect visual acuity without eyeglasses. Suppose also that...