EE WAS REPAIRING A CRACK ON THE FRAME RAIL. AS HE WAS GRINDING FROM ABOVE HIS HEAD, HE FELT DEBRIS STRIKE HIS EYE. AT THAT TIME HE FLUSHED IT OUT & FELT BETTER. THE NEXT MORNING IT WAS RED & IRRITATED. HE WAS TAKEN TO AN EYE CENTER, WHERE AN EMBEDDED PIECE OF METAL WAS REMOVED. HE WAS ISSUED A PRESCRIPTION & RELEASED TO RETURN TO WORK. HE WAS WEARING SAFETY GLASSES.