Table 1. Disease distribution of the included retinal images.

Retinal diseases	Number	Percentage (%)
No apparent DR	431	44.80
DR
Stage I DR	18	1.87
Stage II DR	318	33.06
Stage III DR	55	5.72
Stage IV DR	18	1.87
Stage V DR	7	0.73
Stage VI DR	1	0.10
Other retinal diseases (without DR)
Hypertensive retinopathy	1	0.10
AMD	80	8.32
RVO	0	0
Others	33	3.43
Total	962	100

DR, diabetic retinopathy; AMD, age-related macular degeneration; RVO, retinal vein occlusion.