What I can feel about the effects it says is that it protects against ultraviolet rays, electromagnetic waves, blue light, and can alleviate myopia. It uses anti-blue light lenses to effectively block harmful blue light. At the same time, the rare crystals on the frame release negative oxygen ions and absorb the positive ions of the radiation rays generated by the electronic screen, thus preventing radiation and blue light. The rare crystals also It has the effect of releasing biological ion light waves, which can effectively relieve eye fatigue and clear the mind.