4/11 @ 2 AM, Felt irritation in eye while air arching in rev frame of shovel, sparks coming over & around head. Welding helmet & safety glasses being worn. Washed eye on site, completed shift & next shift. 4/12: 5 PM, after sleeping, eye felt irritated. Imbedded metal partical removed from right cornea by doctor using brush & spud. Returned to work next day after follow-up exam.