Eyeglasses Blue Light Blocking Glasses Semi-Rimless Frame Unisex Matte Black

New In Box (Never Been Used) Frame Color: Matte Black Silver. Lens Size: 52mm. Fast Priority Shipping. Reduce symptoms of eyestrain during prolonged computer exposure. These frames are best used as indoor lenses for long hours of computer use in order to maintain natural sleep patterns and eye production. High quality metal/polycarbonate half frame with metal rivets, scratch-resistant clear lenses, solid smooth metal hinges, soft silicone nose pads, this is a pair of very durable and comfortable glasses. Reflect and filter blue light, prevent color distortion, 7-layer anti-reflective coating to reflect and filter blue light, reduce eyestrain and sleep better. High light transmittance with no noticeable yellow tint to prevent color distortion, minimize glare from digital screens. Prolonged exposure to blue light will slowing or stopping the production of melatonin, causing sleep disorders. Blue Light Glasses can stop it and provide you with a better night's sleep.