EMPLOYEE WAS ATTEMPTING TO REMOVE LIME BUILDUP FROM THE TUBE MILL WITH AN AIR CHISEL. HE WAS ON HIS STOMACH WHEN THE CHISEL BROKE THRU THE HARDENED LIME. THIS CAUSED A CLOUD OF STEAMY LIME TO GO ONTO HIS FACE AND ENTER BOTH EYES. HE RINSED HIS EYES WITH WATER AND EYE SOLUTION BUT COULD NOT REMOVE ALL THE LIME PARTICLES.