Table 3
Horizontal and vertical corneal meridians by various parameters
| Horizontal meridian (H) (mean (SD)) | Vertical meridian (V) (mean (SD)) | Δ HV (mean (SD)) | |
|---|---|---|---|
| Birth weight (g) | |||
| ⩽1,500 (n = 56) | 61.3 (3.9) | 56.0 (2.9) | 5.3 (2.0) |
| 1500–2500 (n = 30) | 56.8 (2.3) | 52.7 (1.9) | 4.1 (1.5) |
| >2,500 (n = 13) | 51.3 (2.1) | 48.6 (1.8) | 2.7 (1.2) |
| Significance of difference | p<0.001 | p<0.001 | p<0.001 |
| Postconceptional age (weeks) | |||
| ⩽32 (n = 32) | 63.3 (3.2) | 57.3 (2.6) | 6.0 (1.8) |
| 32–36 (n = 37) | 58.3 (3.0) | 53.9 (2.5) | 4.4 (1.9) |
| >36 (n = 30) | 54.0 (3.0) | 50.7 (2.4) | 3.3 (1.2) |
| Significance of difference | p<0.001 | p<0.001 | p<0.001 |
