Table 3. Annotation occurrences for the three datasets.
| Lesion | DR1 | DR2 | Messidor |
| Hard Exudates (HE) | 234 | 79 | 654 |
| Superficial Hemorrhages (SH) | 102 | – | – |
| Deep Hemorrhages (DH) | 146 | – | – |
| Red Lesions (RL)* | – | 98 | 226 |
| Cotton-wool Spots (CS) | 73 | 17 | – |
| Drusen (D) | 139 | 50 | – |
| Other lesions, excluding above | – | 71 | – |
| All lesions** | 482 | 149 | 654 |
| Normal (no lesions) | 595 | 300 | 546 |
| All images | 1,077 | 520 | 1,200 |
*“Red Lesion” is a more general annotation that encompasses both SH and DH, besides microaneurysms.
**The lesions do not sum to this value because an image can present several types of lesion at once.