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Retinal maturation stage at birth and 40 weeks (corrected age) in the premature group
| Stage of retinal maturation | 4–5 Weeks PCA No (%) | 40 Weeks No (%) |
| Complete | 0 | 5 (15.1) |
| Incomplete | 4 (12.1) | 16 (48.5) |
| Stage 1 | 19 (57.6) | 6 (18.2) |
| Stage 2 | 10 (30.3) | 6 (18.2) |
| Total | 33 (100) | 33 (100) |
PCA = postconceptual age.
