Table 4

Summary table showing the mean (SD) (arbitrary units) factors for normal and glaucoma groups during each of the four breathing conditions

VesselGroupBaseline 1Hypercapnia
PSVEDVRIPSVEDVRI
OANormal33.2 (7.8)9.8 (2.8)0.7 (0.1)32.5 (8.8)9.3 (2.9)0.7 (0.1)
Glaucoma26.9 (8.3)8.0 (2.5)0.7 (0.0)29.0 (9.1)7.9 (2.3)0.7 (0.1)
CRANormal7.0 (1.6)1.7 (0.6)0.7 (0.1)7.5 (1.26)1.85 (0.5)0.8 (0.1)
Glaucoma6.4 (2.1)1.5 (0.4)0.8 (0.1)6.6 (2.1)1.6 (0.4)0.7 (0.1)
SPCANormal6.0 (1.4)1.7 (0.5)0.7 (0.1)6.1 (1.1)1.7 (0.5)0.8 (0.2)
Glaucoma5.1 (1.9)1.4 (0.5)0.7 (0.2)6.0 (1.7)1.7 (0.3)0.7 (0.1)
VesselGroupBaseline 2Hyperoxia
PSVEDVRIPSVEDVRI
PSV, peak systolic velocity; EDV, end diastolic velocity; RI, resistance index; OA, ophthalmic artery; CRA, central retinal artery; SCPA, short posterior ciliary arteries.
OANormal34.6 (8.5)10.2 (3.2)0.7 (0.1)31.1 (6.6)9.3 (2.7)0.7 (0.1)
Glaucoma29.9 (8.8)8.2 (3.0)0.7 (0.1)27.9 (8.4)7.9 (2.4)0.7 (0.1)
CRANormal6.6 (1.5)1.6 (0.4)0.7 (0.1)6.2 (1.1)1.4 (0.3)0.8 (0.1)
Glaucoma6.5 (1.8)1.6 (0.4)0.8 (0.1)6.3 (1.5)1.6 (0.3)0.7 (0.1)
SPCANormal5.8 (1.0)1.7 (0.4)0.7 (0.0)5.8 (0.7)1.7 (0.3)0.7 (0.1)
Glaucoma5.4 (1.1)1.5 (0.1)0.7 (0.1)5.8 (1.3)1.6 (0.2)0.7 (0.1)