Highest stage of acute ROP and later visual acuity: individual eyes
| Stage ROP | No of eyes | Visual acuity | |||
|---|---|---|---|---|---|
| 4/8 or better No (%) | 4/10–4/40 No (%) | <4/40 No (%) | |||
| None | 480 | 430 (90) | 45 (9) | 5 (1) | |
| Stage 1 | 49 | 45 (92) | 3 (6) | 2 (2) | |
| Stage 2 | 39 | 30 (77) | 9 (23) | — | |
| Stage 3 | 10 | 7 (70) | 1 (10) | 2 (20) | |
| Stage 4 | 10 | — | — | 10 (100) | |