Table 2.

Summary of correlations between ssPERG parameters, CSFI estimated RGC count, and measures of structure and function

	r	p value
Normalized Mag
24-2 MD (dB)	0.22	0.15
ARNFLT (μM)**	0.53	< 0.001
GCIPLT (μM)*	0.38	0.011
Estimated RGC count*	0.46	0.002
Normalized MagD
24-2 MD (dB)	0.23	0.13
ARNFLT (μM)**	0.56	< 0.001
GCIPLT (μM)*	0.40	0.007
Estimated RGC count**	0.51	< 0.001

All relationships are expressed as Pearson and partial correlations adjusted for age. ssPERG parameters Mag, MagD, and MagD/Mag ratio are expressed as transformed data. ssPERG steady-state pattern electroretinography, Mag magnitude, MagD magnitude, MD mean deviation, ARNFLT average retinal nerve fiber layer thickness, GCIPLT ganglion cell layer and inner plexiform layer thickness.

*p < 0.05, **p < 0.001.