Table 1

Comparison of the mean vessel calibre between colour fundus photography and optical coherence tomography angiography

Vessels calibre (µm)Colour fundus photographyOptical coherence tomography angiographyp Value*
Total94.5±23.2112.2±26.1<0.001
Veins105.8±25.4120.9±27.2<0.001
Arteries85.1±18.1103.3±22.2<0.001
Normal eyes100.9±23.6119.3±25.9<0.001
Eyes with atrophic discs89.6±21.7106.6±26.8<0.001
Vessels calibre ≤94.5 µm77.8±12.597.3±19.3<0.001
Vessel calibre >94.5 µm113.8±17.1129.3±22.1<0.001
  • *Paired t-test.