MECHANIC WAS INSTALLING A NEW HYDRAULIC CYLINDER ON THE MEA CONTROLLED DAMPER FOR THE LINE #2 COOLING AIR FAN AT THE PELLET PLANT. HE MANUALLY COMPRESSED THE RAM WITH THE HOSE FITTINGS POINTED TOWARD HIM. OIL SPRAYED HIS FACE AND GOT INTO HIS RIGHT EYE. PRESCRIPTIVE MEDICATION. HE WAS WEARING SAFETY GLASSES.