Table 2 Correlation of within patient interocular differences in mean RNFL thickness at the disc edge, neuroretinal rim volume and cup shape measure with interocular differences in visual function.

Interocular difference	Mean RNFL thickness	Neuroretinal rim volume	Cup shape measure
Visual acuity (logMAR)	r = −0.51	r = −0.32	r = 0.26
	p = 0.009	p = 0.12	p = 0.21
Visual field (mean deviation)	r = 0.48	r = 0.31	r = −0.22
	p = 0.02	p = 0.14	p = 0.30
Colour vision (√FM 100‐Hue score)	r = −0.71	r = −0.42	r = 0.19
	p<0.001	p = 0.05	p = 0.38

r values are Spearman rank correlation coefficients; RNFL, retinal nerve fibre layer; MAR, minimum angle of resolution; FM, Farnsworth Munsell.