Table 2.

The output data for test sets of deep learning in the grade classification according to the Amsler-Krumeich classification.

	Output of Convolutional Neural Network
Actual Category	Normal	G1	G2	G3	G4	Total
Normal	168	2	0	0	0	170
G1	9	33	11	0	1	54
G2	0	6	32	8	6	52
G3	0	1	5	9	8	23
G4	1	1	10	6	32	50