2-Pack Blue Light Blocking Glasses for Women & Men - Stylish Non-Prescription Computer Glasses for Office, Gaming & Outdoor Use - Reduce Eye Strain & Improve Sleep - Perfect for Work, Study & Screen Time

Product Description

What Is Blue Light And Where Does It Come From? Blue light is one of several colors in the visible light spectrum. In your daily life, Your smartphone, laptop and flat screen TV all give off blue light. In addition, sunlight also contains blue light. What is harmful blue light? Is all blue light harmful? Blue light is not all harmful blue light, the really harmful blue light is the blue light within the wavelength of 400 to 450.