. Author manuscript; available in PMC: 2021 Mar 1.

Published in final edited form as: Am J Ophthalmol. 2019 Nov 12;211:123–131. doi: 10.1016/j.ajo.2019.11.006

Table 2.

Absolute Spearman correlations of the mean gradings by humans and the machine to machine (M2M) deep learning (DL) retinal nerve fiber layer (RNFL) thickness predictions with standard automated perimetry (SAP) mean deviation (MD).

Measure	SAP MD		SAP PSD
Measure	Correlation	P-value	Correlation	P-value
M2M DL RNFL thickness	0.540	< 0.001	0.521	< 0.001
Probability of GON	0.479	< 0.001	0.445	< 0.001
Vertical C/D	0.431	< 0.001	0.379	< 0.001
Horizontal C/D	0.332	< 0.001	0.281	< 0.001

C/D = cup-to-disc ratio; GON = glaucomatous optical neuropathy; M2M DL = machine to machine deep learning algorithm; MD = mean deviation; PSD = pattern standard deviation; RNFL = retinal nerve fiber layer; SAP = standard automated perimetry.