Anti Blue Coating

High Energy Blue Light emitted by electronic devices (such as computers, TV, smartphones) have shown to increase the risk of vision conditions from sore dry eyes to macular degeneration. Maintain healthy eyes by reducing exposure to high energy blue light.True anti-blue light blocking, not 20% or 40%, but 90%. Extended exposure to blue light rays may cause fatigue and stress. Filtering out the High Energy Blue Light allows you to focus on your game or task at hand while letting through the less harmful low energy blue light.Extremely lightweight frame with spring hinges and adjustable english nose piece. Adult size: measurement - 53mm lens width, 30mm lens height, 18mm nose bridge, 135mm frame width, 139mm temple length.