Propofol : IOP did not change between BL ( 15.5 2.7 mmHg ) and postpremed ( 16.2 3.6 mmHg , P > 0.05 ) , or postinduct ( 19.1 5.2 mmHg ) and postintub ( 21.0 4.6 mmHg , P > 0.05 ) , but differed significantly between BL and postinduct ( P < 0.0001 ) , and postintub ( P < 0.0001 ) .