Why can't you look at the welding? You've heard this advice many times, haven't you? And for good reason. The radiation of the electric arc is really detrimental to our eyes. Yes, we do not feel this effect, but this is only because this area has no pain receptors🙌🏻 Infrared and ultraviolet, coming in a range invisible to the eye, is the most damaging. This radiation can cause serious damage to the retina, cornea, and lens.