Table 2 Characteristic classification of UWFA in diabetic retinopathy
Image features | Grade 0 | Grade 1 | Grade 2 | Grade 3 | Grade 4 |
|---|---|---|---|---|---|
Microvascular leakage | 19 (9.5) | 13 (6.5) | 4 (2.0) | 9 (4.5) | 154 (77.4) |
Capillary nonperfusion area | 105 (52.8) | 94 (47.2) | – | – | – |
Neovascularization | 118 (59.3) | 32 (16.1) | 19 (9.5) | 14 (7.0) | 16 (8.0) |
Fibrous proliferative membrane | 183 (92.0) | 16 (8.0) | – | – | – |