Zhihe's pupillometer is a precision instrument designed to accurately measure pupillary distance. It operates by aligning luminescent points on the pupils with measuring beams, ensuring precise measurement. Uniquely, this pupillometer offers both monocular and binocular measurement modes, adapting flexibly to different needs. With its innovative design, Zhihe's pupillometer ensures accurate and reliable pupillary distance readings, essential for vision correction and eyewear fitting.