Table 1.
Grades | Description | Tumor necrosis factor-α |
---|---|---|
Grade 1 (n = 4) | Periphlebitis of small caliber vessels with superficial retinal hemorrhages | 14.3–16.2 |
Grade 2 (n = 5) | Periphlebitis of large caliber vessels with superficial retinal hemorrhages | 15.1–19.8 |
Grade 3 (n = 8) | Periphlebitis of large caliber vessels with macular edema | 19.2–22.4 |
Grade 4 | Central periphlebitis | – |