EE WAS CUTTING PORTION OF THE COAL CONVEYOR BELTFOR REPLACEMENT. WHILE TEARING OUT THE DAMAGED BELT AN AMOUNT OF COAL DUST COVERED HIS FACE. HE REMOVED THE DUST FROM HIS FACE, CLEANED HIS SAFE TY GLASSES & CONTINUED WORKING UNTIL THE END OF HIS SHIFT. NEXT DAY HE CAME TO WORK COMPLAINING THAT HIS EYES WERE SWOLLEN, RED & HAD SOME VISION DIFFICULTY.