Table 6.

Interobserver and intraobserver reproducibility of scleral spur and SC parameter measurements

Interobserver	ICC	Difference	95%CI
			Lower	Upper
SC area (μm2)	0.857	26.30	0.812	0.893
Scleral spur length (μm; Method I)	0.885	4.70	0.848	0.914
Scleral spur length (μm; Method II)	0.922	0.67	0.896	0.942
Scleral spur length (μm; Method III)	0.931	0.53	0.908	0.948
Scleral spur opening width (μm)	0.880	7.36	0.842	0.910
Intraobserver	ICC	Difference	95%CI
			Lower	Upper
SC area (μm2)	0.879	73.02	0.840	0.909
Scleral spur length (μm; Method I)	0.898	4.32	0.864	0.923
Scleral spur length (μm; Method II)	0.921	0.89	0.895	0.941
Scleral spur length (μm; Method III)	0.940	0.43	0.919	0.955
Scleral spur opening width (μm)	0.868	8.04	0.825	0.901

ICC intraclass correlation coefficient, CI confidence interval, SC Schlemm’s canal