. Author manuscript; available in PMC: 2014 Sep 16.

Published in final edited form as: Med Image Comput Comput Assist Interv. 2013;16(0 2):75–82. doi: 10.1007/978-3-642-40763-5_10

Table 3.

Comparison of ONH measurements generated by the merchant-provided software of the OCT machine and our algorithm regarding area (mm²) of disc, rim and cup and C/D ratio.

Parameter	Normal				Glaucoma
Parameter	OCT^*	Algorithm^*	r^†	p^†	OCT^*	Algorithm^*	r^†	p^†
Disc area (mm²)	2.50 ± 0.54	2.41 ± 0.39	0.88	0	2.97 ± 0.88	2.94 ± 0.86	0.86	4e-13
Rim area (mm²)	1.71 ± 0.69	1.64 ± 0.67	0.86	2e-12	1.45 ± 0.75	1.46 ± 0.78	0.82	7e-8
Cup area (mm²)	0.78 ± 0.51	0.77 ± 0.63	0.85	3e-19	1.52 ± 0.82	1.48 ± 0.79	0.80	9e-5
C/D Ratio	0.31 ± 0.14	0.32 ± 0.23	0.85	5e-17	0.51 ± 0.20	0.50 ± 0.34	0.81	3e-6

Mean ± STD;

^†

Pearson correlation