Table 4.

Central retinal artery haemodynamics by colour Doppler imaging

	Bimatoprost	Bimatoprost+dorzolamide
Central retinal artery
Peak systolic velocity (cm/s)
18:00	10.0±2.3	11.0±2.3
22:00	10.3±2.8	10.3±2.2
2:00	9.5±2.3	9.9±2.3
4:00	9.4±2.4	10.0±2.6
6:00	8.8±1.9	9.8±3.0
p Value	0.5423
End-diastolic velocity (cm/second)
18:00	3.4±1.0	3.6±1.1
22:00	3.4±1.1	3.5±1.2
2:00	3.5±1.2	3.3±1.1
4:00	3.2±1.1	3.2±1.2
6:00	2.8±0.9	3.0±1.4
p Value	0.6246
Resistance index
18:00	0.655±0.082	0.675±0.066
22:00	0.667±0.065	0.674±0.078
2:00	0.640±0.058	0.668±0.079
4:00	0.654±0.066	0.680±0.074
6:00	0.680±0.075	0.682±0.081
p Value	0.6375

No change in best corrected visual acuity was found between study visits.