TR90 Frame: TR-90 is a memorable macromolecule material. It is of super-tenacity, crash resistance, abrasion resistance, low friction coefficient. It can prevent the harm to eyes and face owing to eyeglass frame and friction in movement.
About Blue RAY: All kinds of computers,television screens,energy saving lamps and other kinds of new artificial light sources are all contained in the visible light of a large number of irregular frequency of the short wave blue ray. Long blue light exposure of the retina to produce free radicals,and these free radicals will lead to the death of retinal pigment epithelial cells,causing retinopathy and other eye diseases.
Yellow Anti-blue Lens to minimize Digital Eye Strain caused by harmful blue rays.