What is commonly referred to as 'blue light' consists of very high-frequency and high-energy rays of light, potentially harmful to our eyes. All electronic devices (computers, smartphones, tablets, televisions) emit blue light and their prolonged and constant use can cause visual stress, red and irritated eyes, headaches, sleep disorders and even damage vision. TWIG anti-blue light glasses are equipped with lenses made specifically to absorb a high percentage of harmful rays, thus limiting the unpleasant consequences due to exposure and improving the quality of our life. ---- Model: TWIG Thiele Gender: Unisex Frame: Polycarbonate added Lenses: Polycarbonate Type: Blue light TWIG pack