Product Principle: When light passes through a prism, it will refracted toward bottom surface, and the object image moves toward the tip, constantly changing the optical power of the prism. Both eyes will have a common visual direction, easily eliminating double vision. Comprehensive detection: The precision vision prism strip kit can accurately measure the vertical and horizontal deviation of the eye. It can detect potential and obvious deviations, the prism can be easily replaced, and the operation is simple and convenient. Essential Tool for Eye Care Professionals: Supplied to major ophthalmology hospitals, this prism set is crucial for the quantitative examination of eye muscles and the training of strabismus vision, enhancing patient care and treatment outcomes. Premium Material: Premium Acrylic Material ensures durability, while also providing secure storage and portability for easy transportation. Suitable for a wide range of settings, including optical shops, hospitals, schools, and corporate ophthalmology departments, this optometry table offers comprehensive visual inspection capabilities. Scope of Application: Our Optical Ophthalmic Prism Set is ideal for use in science education, optics research, and clinical settings, providing reliable and accurate measurements for a variety of purposes.