Table 1

Comparison of measurement from three imaging modalities

Mean absolute inter-reader difference (mm2)0.462.010.25
CR (mm2)1.358.131.08
GA area (mm2), median (IQR)2.1 (0.8–6.4)1.0 (0.3–4.3)2.6 (0.8–6.8)
  • CR, 95% coefficient of repeatability; CV, coefficient of variation; FAF, fundus autofluorescence; GA, geographic atrophy; ICC, intraclass correlation coefficient; 450-FAF, FAF with the 450 nm wavelength excitation light; 450-RF, image obtained from the elaboration of the ‘colour’ 450-FAF; 488-FAF, FAF with the 488 nm wavelength excitation light.