Table 7.

The intraclass correlation coefficients (ICC) and their 95% confidence interval (CI) between the HRT and Discam measurement of radial cup-disc ratio (RCDR) at different positions by observer A and B

	Observer A	Observer B
	ICC (95% CI)	ICC (95% CI)
Superotemporal	0.47 (0.27 to 0.64)	0.23 (0.01 to 0.44)
Inferotemporal	0.51 (0.24 to 0.70)	0.22 (−0.0001 to 0.42)
Superior	0.57 (0.39 to 0.71)	0.33 (0.11 to 0.52)
Temporal	0.36 (−0.05 to 0.63)	0.12 (−0.07 to 0.32)
Inferior	0.74 (0.61 to 0.83)	0.45 (0.24 to 0.62)
Nasal	0.52 (0.32 to 0.67)	0.37 (0.15 to 0.55)