Table 1

Internal test results on the Johns Hopkins University (JHU) dataset and external test results on the Amsterdam University Medical Centers (AUMC) dataset, using the ResNet-152 network

JHU
Modality	VA category	AUC	Precision	Recall
Infrared only	Overall	0.83	0.78	0.77
	Snellen 20/40 or better		0.71	0.83
	Worse than Snellen 20/40		0.83	0.71
OCT only	Overall	0.87	0.76	0.76
	Snellen 20/40 or better		0.73	0.75
	Worse than Snellen 20/40		0.78	0.76
Combined	Overall	0.85	0.83	0.82
	Snellen 20/40 or better		0.76	0.89
	Worse than Snellen 20/40		0.89	0.76
AUMC
Modality	VA category	AUC	Precision	Recall
Infrared only	Overall	0.78	0.69	0.63
	Snellen 20/40 or better		0.80	0.40
	Worse than Snellen 20/40		0.56	0.88
OCT only	Overall	0.87	0.79	0.79
	Snellen 20/40 or better		0.84	0.74
	Worse than Snellen 20/40		0.74	0.84
Combined	Overall	0.85	0.77	0.77
	Snellen 20/40 or better		0.78	0.78
	Worse than Snellen 20/40		0.75	0.75

Three versions of the network were trained and tested: infrared only, OCT only and combined image.
AUC, area under the curve; OCT, optical coherence tomography.; VA, visual acuity.