Comparison of visual acuity at baseline, 24 hours after delivery and at postnatal clinic appointment between cases and controls
| Visual acuity (logMAR) | Cases (%) (n=71) | Controls (%) (n=72) | P value (Fisher’s exact test) |
| Right eye at baseline | 0.366 | ||
| <0.50 | 68 (95.8) | 71 (98.6) | |
| ≥0.50 | 3 (4.2) | 1 (1.4) | |
| Left eye at baseline | 0.245 | ||
| <0.50 | 69 (97.2) | 72(100) | |
| ≥0.50 | 2 (2.8) | 0 (0) | |
| Right eye 24 hours after delivery | * | ||
| <0.50 | 71(100) | 72(100) | |
| ≥0.50 | 0 (0) | 0 (0) | |
| Left eye 24 hours after delivery | 0.497 | ||
| <0.50 | 70 (98.6) | 72(100) | |
| ≥0.50 | 1 (1.4) | 0 | |
| Right eye at postnatal clinic | * | ||
| <0.50 | 71(100) | 72(100) | |
| ≥0.50 | 0 (0) | 0 (0) | |
| Left eye at postnatal clinic | * | ||
| <0.50 | 71(100) | 72(100) | |
| ≥0.50 | 0 (0) | 0 (0) |
*p values could not be calculated.