Morphometric Optic Nerve Head Analysis in Glaucoma Patients: A Comparison between the Simultaneous Nonmydriatic Stereoscopic Fundus Camera (Kowa Nonmyd WX3D) and the Heidelberg Scanning Laser Ophthalmoscope (HRT III)

Table 2

Mean differences [limits of agreement (95% CI)] of stereometric optic nerve head parameters between HRT III and Kowa nonmyd WX3D assessment separated for the CDR < 0.5 group and the CDR ≥ 0.5 group and in total.

Optic nerve head parameter	CDR < 0.5 ()	CDR ≥ 0.5 ()	Total ()
CDR	−0.14 [−0.34 to 0.06]	0.06 [−0.21 to 0.34]	−0.06 [−0.36 to 0.24]
Disc area (mm^2)	−0.66 [−1.73 to 0.42]	−0.76 [−1.92 to 0.40]	−0.70 [−1.80 to 0.40]
Cup volume (mm^3)	0.06 [−0.11 to 0.23]	0.19 [−0.07 to 0.46]	0.11 [−0.13 to 0.36]
Rim volume (mm^3)	−0.12 [−0.87 to 0.63]	−0.32 [−0.95 to 0.28]	−0.20 [−0.93 to 0.53]
Maximum cup depth (mm)	0.32 [−0.04 to 0.68]	0.34 [−0.01 to 0.69]	0.33 [−0.02 to 0.68]