Table 1.
Severity of retinopathy classification
| Zone | Stage | Plus | Severity category | Reference |
|---|---|---|---|---|
| AP-ROP | 5 | |||
| 1 | 3 | No plus | Type 1 | 6 |
| 1 | 3 | Preplus | This study | |
| 1 | 3 | Plus disease | 6 | |
| 1 | 2 | Plus disease | 6 | |
| 1 | 1 | Plus disease | 6 | |
| 2 | 3 | Plus disease | 6 | |
| 2 | 2 | Plus disease | 6 | |
| 2 | 1 | Plus disease | Type 2 plus | This study |
| 3 | 3 | Plus disease | ||
| 3 | 2 | Plus disease | ||
| 3 | 1 | Plus disease | ||
| 1 | 2 | Preplus | ||
| 1 | 1 | Preplus | ||
| 2 | 3 | Preplus | ||
| 2 | 2 | Preplus | ||
| 2 | 1 | Preplus | ||
| 3 | 3 | Preplus | ||
| 3 | 2 | Preplus | ||
| 3 | 1 | Preplus | ||
| 1 | 2 | No plus | Type 2 | 6 |
| 1 | 1 | No plus | ||
| 2 | 3 | No plus | ||
| 2 | 2 | No plus | Mild | 7 |
| 2 | 1 | No plus | ||
| 3 | 3 | No plus | 7 | |
| 3 | 2 | No plus | ||
| 3 | 1 | No plus | 7 | |
| 4 | Partial retinal detachment | 5 | ||
| 5 | Total retinal detachment | 5 |
AP-ROP, aggressive posterior retinopathy of prematurity.