After 6 weeks , mean IOP with TRAV ( 17.4 2.7 mmHg ; change from baseline , -6.0 mmHg ) was similar to BIM ( 17.2 2.6 mmHg ; change from baseline , -6.3 mmHg ) ; the between-group difference was 0.22 mmHg ( 95 % CI , -0.22 to 0.67 ) .