Table 2

Changes in baseline and demographic parameters during VM

ParameterDuring VMMean difference95%  CIp Value†
meanSDLowerUpper
IOP, mm Hg 15.58 2.92 0.81 0.511.11<0.001*
SE, dioptre −1.61 2.49−0.02−0.070.02 0.32
SBP, mm Hg124.417.9 3.84 0.37.4 0.02*
DBP, mm Hg 80.312.8 7.3 4.99.7<0.001*
PD, mm  5.10 0.92 0.02−0.070.11 0.65
SS-OCT parameters
 ILM thickness, µm 34.78 4.51−0.13−0.380.13 0.33
 GCL thickness, µm 72.24 5.66 0.17−0.250.6 0.42
 GCC thickness, µm109.5227.91 2.54−2.767.85 0.34
 Retinal thickness, µm272.0712.72−0.76−1.720.19 0.12
 Choroidal thickness, µm214.8261.32−0.92−2.240.4 0.17
UBM parameters
 CBT0, mm  1.10 0.10 0.11 0.1010.119<0.001*
 CT4, mm  0.36 0.05 0.065 0.0580.073<0.001*
 APCB, mm  0.88 0.13 0.123 0.1110.134<0.001*
 TCA, degree 52.83 6.95−0.76−1.550.44 0.06
  • *Shows results with a significant difference.

  • †Comparison using paired t-test.

  • APCB, anterior placement of the ciliary body; CBT0, ciliary body thickness; CT4, thickness of the choroid at a distance of 4 mm from the root of the iris; DBP, diastolic blood pressure; GCC, ganglion cell complex; GCL, ganglion cell layer; ILM, internal limiting membrane; IOP, intraocular pressure; PD, pupil diameter; SBP, systolic blood pressure; SE, spherical equivalent; SS-OCT, swept-source optical coherence tomography; TCA, trabecular–ciliary angle; UBM, ultrasound microscope; VM, Valsalva manoeuvre.