EMPLOYEE WAS WELDING AND GRINDING ON PROCESSING PLANT WHEN A PIECE OF STEEL SLAG BECAME LODGED ON RIGHT EYE. EMPLOYEE THOUGHT HE REMOVED THE SLAG AND CONTINUED TO WORK. THE EYE CONTINUED TO BE IRRITATED PROMPTING THE EMPLOYEE TO SEEK MEDICAL HELP IN COMPLETE REMOVAL OF SLAG. TWO FORMS OF EYE PROTECTION WAS WORN.