Introducing our top-of-the-line product, the 1.56 Blue Block UV420 photochromic photo grey optical lens. Our factory produces high-quality lenses using the latest technology and the finest materials. These lenses provide complete protection against harmful UV rays, blocking blue light to reduce eye strain and fatigue. Additionally, the photochromic feature allows the lenses to adjust to different light conditions, offering optimal visual clarity both indoors and outdoors. The photo grey optical lens provides accurate color perception, making them perfect for daily wear. Trust in our factory's commitment to excellence and experience the ultimate visual comfort with our 1.56 Blue Block UV420 photochromic photo grey optical lens.