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 differencep<0.001p<0.001p<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 differencep<0.001p<0.001p<0.001