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Table 4 CDI measurements in the control group. Ocular perfusion in the control group. CDI measurements obtained from the control group (n = 8). The time period between between first and second measurement was 3–5 weeks. Local and systemic medication was not changed between the two examinations of the patient. Data are given as mean ± standard deviation. Bold printed measures were subjected to statistical testing; all other parameters were observational only.

From: Effects of glaucoma drugs on ocular hemodynamics in normal tension glaucoma: a randomized trial comparing bimatoprost and latanoprost with dorzolamide [ISRCTN18873428]

   PSV (cms-1) EDV (cms-1) RI PI
OA first examination 29.3 ± 2.6 3.7 ± 0.6 0.87 ± 0.02 2.57 ± 0.29
  second examination 30.6 ± 3.2 5.4 ± 1.0 0.83 ± 0.02 2.08 ± 0.20
CRA first examination 8.2 ± 1.5 1.8 ± 0.4 0.76 ± 0.03 1.93 ± 0.19
  second examination 7.5 ± 0.9 1.4 ± 0.1 0.80 ± 0.03 2.14 ± 0.21
SPCA first examination 10.8 ± 1.6 2.6 ± 0.5 0.75 ± 0.02 1.76 ± 0.17
  second examination 10.1 ± 2.4 2.5 ± 0.6 0.75 ± 0.02 1.55 ± 0.09
LPCA first examination 18.0 ± 3.8 3.1 ± 0.8 0.82 ± 0.04 2.01 ± 0.21
  second examination 18.0 ± 4.0 3.6 ± 0.9 0.77 ± 0.01 1.69 ± 0.12
  1. Abbreviations: OA – Ophthalmic artery, CRA – central retinal artery, SPCA – short posterior ciliary artery, LPCA – long posterior ciliary artery, PSV – peak systolic velocity, EDV – enddiastolic velocity, RI – resistive index, PI – pulsatility index.