Table 1 of Rocha, Mol Vis 2011; 17:1679-1686.
Table 1. Classification of defects of the optic nerve damage.
| Defect | Type | Description |
|---|---|---|
| 0 | Normal | Without lesion |
| 1 | Initial defect | Focal deficiency in 1 or more pole that do not reach up to the papillary edge |
| 2 | Small defect | Focal deficiency in 1 pole that reach to the papillary edge |
| 3 | Middle Defect | Focal deficiency in 1 or more pole that reach papillary edge (Notch) |
| 4 | Middle severe defect | Focal deficiency in 1 or more pole that reach the papillary edge (Notch) plus hemorrhage or β zone |
| 5 | Severe defect | Cup/Disc ratio above 09/09 |
| 6 | Null | Cup/Disc ratio total (10/10) |