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Blue light is the lower end of the visible spectrum and covers wavelengths from 380-500 nm. Digital screens emit electromagnetic radiation in a broad range of frequencies.
Certain strains of blue light are prevalent in sunlight and many modern technologies, which can impact your sleep cycle, and potentially cause eye strain and fatigue.These digital protection lenses both reflect and filter certain strains of blue light while letting beneficial blue light pass through, which is a step beyond traditional yellow hued computer lenses that only filter this light.