Editor’s Note: I have seen welders holding protective masks or wearing protective goggles welding on the road. Have you ever thought that welders should not look at it. This must be very destructive light. Will my eyes be blind if I look at it carelessly? Dr. Clove asked a professional ophthalmologist to tell you! Ultraviolet rays are the culprit. Welding is actually an intense and continuous discharge process. Photons of different wavelengths are excited at different temperatures to form an arc. Therefore, this arc is not only visible light to human eyes, but mainly contains three different wavelengths of light sources-infrared, visible and ultraviolet. Among them, a large number of ultraviolet rays invisible to the naked eye are the invisible Read More …