Table 5

Statistical differences in the optic disc parameters evaluated by the Fisher's protected least significant difference procedure

	Control/ OHND	Control/ OHD	Control/ NTD	OHND/ OHD	OHND/ NTD	OHD/ NTD
Total contour area	0.280	0.045	0.016	0.392	0.136	0.406
Neuroretinal rim area	0.821	0.211	0.035	0.302	0.052	0.244
Effective area	0.091	0.0003	<0.0001	0.052	0.002	0.102
Half depth area	0.264	0.0023	<0.0001	0.049	<0.0001	0.006
C/D ratio	0.124	<0.0001	<0.0001	0.013	0.0002	0.019
Mean contour depth	0.330	0.002	<0.0001	0.027	0.0003	0.047
Volume below	0.119	0.0007	<0.0001	0.070	0.0007	0.040
Maximum depth	0.265	0.142	0.033	0.801	0.269	0.328
Half depth volume	0.396	0.0063	<0.0001	0.049	0.0005	0.036
Average depth	0.995	0.992	0.106	0.998	0.100	0.072
Contour variation	0.350	0.278	0.935	0.954	0.315	0.245
Contour tilt	0.089	0.530	0.147	0.197	0.844	0.308

↵p<0.05;
↵p<0.001.
C/D ratio = cup to disc ratio; OHND = ocular hypertension without glaucomatous disc change; OHD = ocular hypertension with glaucomatous disc change; NTD = normal tension with glaucomatous disc change.