Table II.

Safety assessment.

	TV group			LT group
Item	BL (n=89)	EL (n=89)	P-value	BL (n=161)	EL (n=161)	P-value
Best-corrected visual acuity	9.25±1.88	9.24±1.81	0.971	9.27±1.89	9.26±1.88	0.962
Visual field defect	-0.66±0.09	-0.67±0.10	0.484	-0.65±0.08	-0.66±0.09	0.293
Vertical cup to disc ratio	0.61±0.03	0.62±0.04	0.061	0.62±0.05	0.63±0.06	0.105

Values are expressed as the mean ± standard deviation. At present, there is no indication of a between-group comparison. The Wilcoxon test were performed for statistical analysis. n indicates the number of eyes. BL, at the start of treatment during a routine check-up; EL, at the end of 3 months of treatment; TV, travoprost; LT, latanoprost.