EE LOOSENED HOSE ON RIPPER LIFT CYLINDER UNAWARETHAT IT WAS UNDER PRESSURE. AIR & OIL SPRAYED OUT OF HOSE INTO HIS FACE. HIS EYES WERE FLUSHED; HE WAS TAKEN TO AREA DOCTOR TO BE CHECKED OUT. FLUSHED EYES. OBSERVED NO SCRATCHING. GAVE PRESCIPTION & RELEASED TO RETURN TO WORK.