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Br J Ophthalmol 88:1266-1269 doi:10.1136/bjo.2003.039099
  • Clinical science
    • Scientific reports

Reproducibility of the Heidelberg retinal flowmeter in determining low perfusion areas in peripapillary retina

Table 3

 Coefficient of variation (CV) for the percentage of no flow pixels and the 10, 25, 50, 75, 90th percentiles of flow in all subjects

Intrasession reproducibility % of 0 pixels Mean flow 10 percentile 25 percentile 50 percentile 75 percentile 90th percentile
Observer CV % SD CV % SD CV % SD CV % SD CV % SD CV % SD CV % SD
1 14.64 6.11 11.59 5.58 11.73 5.23 8.84 4.24 8.53 3.76 10.79 5.16 15.02 6.61
2 18.55 11.17 13.08 5.77 11.22 4.67 9.81 3.93 9.53 4.29 12.37 6.03 17.07 7.30
1/2 16.59 9.10 12.33 5.65 11.47 4.90 9.32 4.06 9.03 4.02 11.58 5.60 16.05 6.95
t test 0.22 0.46 0.77 0.50 0.46 0.36 0.35

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