Table 4.
Results of color Doppler imaging in normal tension glaucoma with topical nipradilol.
| Parameter | Before | 2 hrs (P value) | 4 week (P value) |
|---|---|---|---|
| Ophthalmic artery | |||
| PSV (cm/sec) | 28.4 ± 10.8 | 24.7 ± 9.3 (0.0028)* | 26.0 ± 9.0 (0.0871) |
| EDV (cm/sec) | 7.71 ± 3.73 | 7.07 ± 3.26 (0.0859) | 7.44 ± 3.67 (0.3490) |
| Resistance index | 0.725 ± 0.084 | 0.712 ± 0.071 (0.4552) | 0.721 ± 0.058 (0.7022) |
| Central retinal artery | |||
| PSV (cm/sec) | 9.89 ± 3.31 | 10.9 ± 4.4 (0.0198)* | 10.3 ± 4.0 (0.3317) |
| EDV (cm/sec) | 2.88 ± 1.17 | 3.50 ± 1.43 (0.0003)* | 3.25 ± 1.35 (0.0133)* |
| Resistance index | 0.711 ± 0.046 | 0.676 ± 0.035 (0.0002)* | 0.683 ± 0.041 (0.0010)* |
| NPCA | |||
| PSV (cm/sec) | 9.03 ± 3.23 | 9.52 ± 4.31 (0.3134) | 7.67 ± 2.43 (0.0365)* |
| EDV (cm/sec) | 3.18 ± 1.40 | 3.77 ± 1.97 (0.0064)* | 2.92 ± 0.94 (0.9108) |
| Resistance index | 0.651 ± 0.061 | 0.607 ± 0.050 (0.0023)* | 0.616 ± 0.052 (0.0124)* |
| TPCA | |||
| PSV (cm/sec) | 8.76 ± 2.53 | 10.2 ± 3.4 (0.0048)* | 8.43 ± 2.24 (0.5256) |
| EDV (cm/sec) | 2.95 ± 0.93 | 4.05 ± 1.43 (0.0001)* | 3.25 ± 1.01 (0.1303) |
| Resistance index | 0.662 ± 0.055 | 0.601 ± 0.048 (0.0007)* | 0.615 ± 0.047 (0.0040)* |
Values are presented as mean ± standard deviation. PSV: peak systolic velocity, EDV: end-diastolic velocity, NPCA: nasal short posterior ciliary artery, TPCA: temporal short posterior ciliary artery. Wilcoxon signed-rank sum test.
(P)* < 0.05.