EE CUT INTO 1/2"" NAOH LINE & WAS SPRAYED W/CAUSTIC SOLUTION. STEPS HAD BEEN TAKEN TO DEPRESSURIZE LINE & PROPER SAFETY EQUIPMENT WAS BEING USED. WHEN CAUSTIC SOLUTION STARTED SPRAYING IT SPRAY ED UNDER FULL FACE SHIELD BEING WORN & ONTO EE'S FACE & EYES. FIRST AID WAS ADMINISTERED ON-SITE & MEDICAL TREATMENT PERFORMED. HIS EYES WERE IRRIGATED. NEOSPORIN OINTMENT WAS APPLIED TO LEFF