DOOVIS Blue Light UV Blocking Computer Glasses for Women and Men Anti Eye Strain Eyewear Premium Computer Glasses-Brown-

DIMENSIONS: Overall Width: 143mm Temple Length: 140mm Lens Width: 53mm Lens Height: 41mm Frame Height: 47mm Nose Bridge Width:17mm Lenses: Aspheric Head Size: Medium. frame 8-in-1 Coating Technology Computer Glasses lens are made with advanced 8 coating technology to effectively block UV400 and electromagnetic radiation, filter out high energy blue light and other harmful light, imitate natural condenser, reduce glare and improve contrast, and restore true colors Information for blue light: 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