Table 3.

The main specifications of the four utilized benchmark datasets

Dataset	Images	Camera	Resolution	Format	GT	Experts	Classes
APTOS 2019 [35]	18590	different cameras with various FOV	from $474\times 358$ to $3388\times 2588$	JPG	Yes: grading CSV	many	5
IDRiD [33]	597	AKowa VX-10 alpha with ${50}^{\mathrm{o}}$ FOV	$4288\times 2848$	JPG	Yes: grading CSV	unknown	5
EyePACS [32]	35,126	different cameras with various FOV	$1440\times 960$	jpeg	Yes: grading CSV	many	5
MESSIDOR [34]	1200	Topcon TRC NW6 with ${45}^0$ FOV	$1440\times 960$	TIFF	Yes: grading CSV	3	4