1.56 semi-finished photochromic lens offers an intelligent vision solution that automatically darkens when exposed to sunlight and clears indoors, providing seamless UV protection. The high-quality resin material features embedded photochromic molecules activated by UV/visible light, ensuring reliable performance in various lighting conditions, along with built-in 100% UV blocking. As a semi-finished blank, it allows optical labs to precisely customize the front surface for single vision prescriptions with spherical or aspheric designs, offering patients personalized vision correction combined with adaptive sun protection in a lightweight, durable format ideal for everyday wear.