Table 4.
Summary table showing the mean (SD) (arbitrary units) factors for normal and glaucoma groups during each of the four breathing conditions
| Vessel | Group | Baseline 1 | Hypercapnia | ||||
| PSV | EDV | RI | PSV | EDV | RI | ||
| OA | Normal | 33.2 (7.8) | 9.8 (2.8) | 0.7 (0.1) | 32.5 (8.8) | 9.3 (2.9) | 0.7 (0.1) |
| Glaucoma | 26.9 (8.3) | 8.0 (2.5) | 0.7 (0.0) | 29.0 (9.1) | 7.9 (2.3) | 0.7 (0.1) | |
| CRA | Normal | 7.0 (1.6) | 1.7 (0.6) | 0.7 (0.1) | 7.5 (1.26) | 1.85 (0.5) | 0.8 (0.1) |
| Glaucoma | 6.4 (2.1) | 1.5 (0.4) | 0.8 (0.1) | 6.6 (2.1) | 1.6 (0.4) | 0.7 (0.1) | |
| SPCA | Normal | 6.0 (1.4) | 1.7 (0.5) | 0.7 (0.1) | 6.1 (1.1) | 1.7 (0.5) | 0.8 (0.2) |
| Glaucoma | 5.1 (1.9) | 1.4 (0.5) | 0.7 (0.2) | 6.0 (1.7) | 1.7 (0.3) | 0.7 (0.1) | |
| Vessel | Group | Baseline 2 | Hyperoxia | ||||
| PSV | EDV | RI | PSV | EDV | RI | ||
| PSV, peak systolic velocity; EDV, end diastolic velocity; RI, resistance index; OA, ophthalmic artery; CRA, central retinal artery; SCPA, short posterior ciliary arteries. | |||||||
| OA | Normal | 34.6 (8.5) | 10.2 (3.2) | 0.7 (0.1) | 31.1 (6.6) | 9.3 (2.7) | 0.7 (0.1) |
| Glaucoma | 29.9 (8.8) | 8.2 (3.0) | 0.7 (0.1) | 27.9 (8.4) | 7.9 (2.4) | 0.7 (0.1) | |
| CRA | Normal | 6.6 (1.5) | 1.6 (0.4) | 0.7 (0.1) | 6.2 (1.1) | 1.4 (0.3) | 0.8 (0.1) |
| Glaucoma | 6.5 (1.8) | 1.6 (0.4) | 0.8 (0.1) | 6.3 (1.5) | 1.6 (0.3) | 0.7 (0.1) | |
| SPCA | Normal | 5.8 (1.0) | 1.7 (0.4) | 0.7 (0.0) | 5.8 (0.7) | 1.7 (0.3) | 0.7 (0.1) |
| Glaucoma | 5.4 (1.1) | 1.5 (0.1) | 0.7 (0.1) | 5.8 (1.3) | 1.6 (0.2) | 0.7 (0.1) | |