Table 3.

Interocular symmetry analysis of optic nerve parameters with SD-OCT in children (N = 128).

Parameter	Right eyes (N = 128) Mean ± SD	Left eyes (N = 128) Mean ± SD	Difference Mean (95% CI)	ICC	p
C/D area ratio	0.20 ± 0.13	0.20 ± 0.13	−0.002 (−0.015–0.012)	0.906*	0.813
C/D vertical ratio	0.37 ± 0.17	0.37 ± 0.19	0.004 (−0.018–0.026)	0.855*	0.732
C/D horizontal ratio	0.45 ± 0.20	0.44 ± 0.21	0.006 (−0.018–0.031)	0.868*	0.611
Rim area (mm2)	1.84 ± 0.45	1.84 ± 0.47	−0.002 (−0.066–0.062)	0.811*	0.951
Disc area (mm2)	2.30 ± 0.42	2.29 ± 0.42	0.004 (−0.061–0.070)	0.751*	0.896
Cup volume (mm3)	0.09 ± 0.10	0.08 ± 0.09	0.010 (−0.001–0.020)	0.895*	0.072

Note. C/D = cup to disk; ICC = intraclass correlation coefficient.

*p < 0.001.