EE WAS ATTEMPTING TO CLEAR OBSTRUCTION FROM AIR LANCE, PRESSURE WAS TURNED OFF, BUT PRESSURE WAS BEHINE OBSTRUCTION WHEN THE PRESSURE RELEASED UNEXPECTEDLY IT RESULTED IN A LIME BURN ON EE'S RIGHT EYE. TREATED BY A DR. ON 12/31,01/01,01/02, & CLEARED TO RETURN TO REGULAR SCHEDULE.