Rabbit | NaOH (Concentration and duration of exposure) | Clinical inflammatory features (on day-7) | Histopathological inflammatory features (on day-7) | ||
---|---|---|---|---|---|
 |  | Conjunctival hyperemia | Corneal edema | Corneal epithelial defect | Grading of PMN |
1 | 1N NaOH (30 seconds) | moderate | moderate | mild | Nil |
2 | 2N NaOH (30 seconds) | moderate | moderate | mild | mild |
3 | 2N NaOH (60 seconds) | severe | severe | severe | mild |