Blue light wave is one of the shortest, highest-energy wavelength that's between approximately 380nm and 500nm in visible light spectrum. Blue light is actually everywhere including the sun, digital screens (TVs, computers, laptops, smart phones and tablets), electronic devices, and fluorescent and LED lighting
CARE
To avoid damage, never contact with acid, and avoid using paper, towels, clothing, alcohol, household detergents or soaps to clean your reading glasses. While a few mild soaps don't harm lenses, today's extra strength soaps are powerful enough to slowly disintegrate lens coatings
