Classification criteria used for anterior chamber cellular reaction,9 hyphaema,9 and corneal oedema10
| *The intensity of cellular reaction in the anterior chamber is graded according to the number of inflammatory cells seen in a 1×3 mm high powered beam at full intensity at a 45°–60°angle. |
| Anterior chamber cellular reaction and hyphaema* |
| 0: no cell |
| Trace: <5 cell |
| 1+: 5–10 cells |
| 2+: 10–20 cells |
| 3+:: 20–30 cells |
| 4+: cells too numerous to count |
| Corneal oedema |
| 1+: folds in descemet membrane |
| 2+: stromal oedema in a ground glass appearance |
| 3+: microcyctic epithelial oedema or subepithelial bullae |