a lens is provided which can be worn , in the form of eyeglasses , for the reduction of visual noise and resulting eye strain for an observer of a visual display terminal . the lens comprises a light transmitting plastic body having convex shaped outer surface away from the eye of the observer and a concave inner surface facing the eye of the observer . the body is provided with , in combination , an ultraviolet absorber for at least substantially blocking the transmission of ultraviolet radiation incident upon the lens , a color dye for diminishing the transmission of radiation having a wavelength of between 500 - 600 nm , and a grey dye for reducing the transmission of visible light . a corresponding method is also provided , along with a method and a kit for producing such a lens .