EMPLOYEE & CO-WORKER WERE WORKING OUT OF THE MANLIFT BASKET. WHILE EMPLOYEE HELD A BEAM THE CO-WORKER WELDED IT IN PLACE. A SPARK FLEW FROM THE WELDING INTO EMPLOYEE'S RIGHT EYE. HE WAS WEARIN G PRESCRIPTION SAFETY GLASSES. HE KEPT RUBBING RIGHT EYE, CAUSING MORE DAMAGE TO THE EYE.