Morphology of Optic Disc Through Heidelberg Retina Tomograph in Retinal Vein Occlusions Alone or in Combination with Primary Open Angle Glaucoma§

Table 5: HRT II Parameters (Mean Values±SD) Per Occlusion Site in the RVO and POAG Group

	OC - RVO	AV-RVO	P OC vs AV	NONHS-RVO	P OC vs NONHS
Disk area (mm²±sd)	2.102±0.876	1.987±0.912	0.18	1.956±0.763	0.157
Cup area (mm²±sd)	0.119±0.029	0.787±0.063	0.004	0,765±0.061	0.003
Cup disk area ratio	0.532±0.09	0.396±0.077	0.02	0.391±0.084	0.035
Rim area (mm²±sd)	0.983±0.104	1.201±0.187	0.13	1.191±0.163	0.27
Height variation contour (mm±sd)	0.473±0.081	0.534±0.097	0.25	0.513±0.094	0.36
Cup volume (mm³±sd)	0,498±0.094	0.436±0.087	0.59	0.467±0.079	0.473
Rim volume (mm³±sd)	0.374±0.07	0.554±0.086	0.005	0.523±0.091	0.0045
Mean cup depth (mm±sd)	0.513±0.101	0.493±0.098	0.004	0.378±0.103	0.006
Maximum cup depth (mm±sd)	0.922±0.143	0.876±0.107	0.08	0.798±0.123	0.13
Cup shape measure	-0.079±0.013	-0.167±0.092	0.013	-0.154±0,084	0.016
Mean RNFL thickness (mm±sd)	0.187±0.096	0.199±0.056	0.75	0.178	0.432
RNFL cross sectional area (mm²±sd)	1.043±0.141	1.167±0.164	0.69	1.123±0.094	0.475

RVO: Retinal Vein Occlusion; POAG: Primary Open Angle Glaucoma; RNFL: Retinal Nerve Fiber Layer; AV-RVO: Artero-Venous crossing Retinal Vein Occlusion; OC-RVO: Optic Cup Retinal Vein Occlusion; ON-RVO: Optic Nerve Retinal Vein Occlusion without Head Nerve Swelling (NONHS-RVO).