Thirty patients who had elective general anesthesia at Kyungpook National University Hospital from April to August 1986 were studied for intraocular pressure(lOP) changes after intravenous lidocaine administration. The resultg were as follows. The 30 patients comprised three groups of each 10, placebo group and lidocaine 1 mng/kg and 2mg/kg Pretreatment group. In lidocaine 1 mg/kg administration group, the IOP of 1 minute and 2 minutes after intubation were 21.8±3.8 mmHg, 21.3±2.6 mmHg and showed significant(p<0.01) increase compared with the control value. In lidocaine 2 mg/kg pretre-atment group, the IOP of I minute after intubation was 22.7±3.9 mmHg and showed significant(p70.05) increase, but the IOP of 2 minute after intubation was 20.2±3.2mmHg which not showed significant increase compared with the control value. The IOP of 2 minute after incubation in lidocaine 1 mg/kg administration group(p<0.05) and lidocaine 2 mg/kg administration group(p<0.01) showed significant decrease compared with placebo group. The incidence of coughing and arrhythmia stowed decreasing tendency according to doses of lidocaine, but not statistically significant.