Table 2.
Differences in waveform parameters describing the curve of mean blur rate in the area of the capillaries (MT).
| Waveform parameters | NTG mean ± SD | Control group mean ± SD | P Value |
|---|---|---|---|
| BOT | 45.83 ± 3.95 | 43.22 ± 3.21 | 0.028* |
| BOS | 71.83 ± 6.31 | 68.52 ± 5.06 | 0.075 |
| Skew | 13.32 ± 1.86 | 14.05 ± 2.48 | 0.3 |
| ATI | 31.79 ± 3.48 | 32.45 ± 2.85 | 0.518 |
| RR | 12.32 ± 0.79 | 12.13 ± 0.71 | 0.427 |
| FR | 13.45 ± 4.43 | 14.79 ± 3.21 | 0.28 |
| FAI | 0.56 ± 0.18 | 0.84 ± 0.27 | 0.001* |
| RI | 0.41 ± 0.07 | 0.45 ± 0.05 | 0.026 |
| Fluctuation | 15.94 ± 3.59 | 18.17 ± 3.31 | 0.048 |
(NTG) Normal tension glaucoma. (SD) Standard deviation. (BOT) Blow out time. (BOS) Blow out score. (ATI) Acceleration time index. (RR) Rising rate. (FR) Falling rate. (FAI) Flow acceleration index. (RI) Resistivity index. Data were adjusted for the heart rate. (*Marks statistical significance).