Whereas most readers are designed for practical purposes only, these reading glasses have been crafted for fashionable wearers who refuse to sacrifice style for convenience. Our most style-forward reading glasses for men provide a crystal clear, close up view to prevent squinting and straining. These blue light glasses are specifically designed to block or filter out the blue light. Blue-light-blocking glasses have shown to reduce eye strain, eye damage, and improve sleep. 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 adjust english nose piece. Adult size: measurement - 53mm lens width, 30mm lens height, 18mm nose bridge, 135mm frame width, 139mm temple length. 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. Content include 3 pair of glasses and 3 microfiber cleaning/storage pouches.