Mean ± SD (mmHg)

Travoprost 0.004% group n = 31

Travoprost 0.004%/timolol 0.5% group n = 31

P-value

IOP (first visit)

26.4 ± 2.1

26.3 ± 2.1

P = 0.932

IOP (after 3 months)

18.5 ± 1.3

17.7 ± 1.6

P = 0.137

Diff. IOP 3/1

−7.9 ± 2.3

−8.6 ± 2.0

P = 0.227

IOP (after 6 months)

18.9 ± 1.5

18.2 ± 1.3

P = 0.054

Diff. IOP 6/1

−7.5 ± 2.7

−8.1 ± 2.2

P = 0.305

IOP (after 12 months)

19.8 ± 1.3

18.3 ± 1.2

P = 0.000

Diff. IOP 12/1

−6.6 ± 2.4

−8.0 ± 2.1

P = 0.024

IOP (after 24 months)

20.5 ± 1.5

18.5 ± 1.5

P = 0.000

Diff. IOP 24/1

−5.9 ± 2.9

−7.8 ± 2.3

P = 0.005