Complex sentence: Most commonly used with arc welding processes such as shielded metal arc welding, gas tungsten arc welding, and gas metal arc welding, welding helmets are necessary to prevent arc eye, a painful condition where the cornea is inflamed.
Split into simpler sentences: Most commonly used with arc welding processes such as shielded metal arc welding, gas tungsten arc welding, and gas metal arc welding. Welding helmets are necessary to prevent arc eye, a painful condition where the cornea is inflamed.