Morana C4B

Because short-wavelength, high energy blue light scatters more easily than other visible light, it is not as easily focused. When you’re looking at computer screens and other digital devices that emit significant amounts of blue light, this unfocused visual “noise” reduces contrast and can contribute to digital eye strain.
Research has shown that lenses that block blue light increase contrast significantly. Therefore, Spawn computer glasses with yellow-tinted lenses may increase comfort when you’re viewing digital devices for extended periods of time.