Version July 2025
| Response | Brain imaging | Steroid dose | Ophthalmologic examination | CSF cytology |
| Complete response (CR) | No contrast-enhancing disease | None | Normal | Negative |
| Unconfirmed complete response (uCR) | No contrast-enhancing disease | Any | Normal | Negative |
| Minimal enhancing disease | Any | Minor RPE abnormality | Negative | |
| Partial response (PR) | 50% decrease in enhancement | NA | Normal or minor RPE abnormality | Negative |
| No contrast-enhancing disease | NA | Decrease in vitreous cells or retinal infiltrate | Persistent or suspicious | |
| Progressive disease (PD) | 25% increase in enhancing disease Any new site of disease | NA | Recurrent or new disease | Recurrent or positive |
| Stable disease (SD) | Less than PR but not PD |
