Table 1

Cup volume (CV), rim area (RA) and cup area to disc area ratio (CA/DA) evaluated by the Heidelberg retina tomograph (HRT) and Topcon ImageNet (TI)

	HRT (n = 28)				TI (n = 28)		p Value
	Mean	SD			Mean	SD	p Value
CV (mm³)	0.32	0.25		0.52	0.32	<0.001
RA (mm²)	1.33	0.47		1.58	0.39	0.004
CA/DA	0.42	0.18		0.42	0.14	0.93

↵Significance of the differences (pairedt test).