MSE (D) | Astigmatism (D) | Anisometropia (D) | |||||
---|---|---|---|---|---|---|---|
(Corrected) age | Study group | Mean | SD | Mean | SD | Mean | SD |
Means and standard deviations (SD) for fullterm and preterm infants and different test ages. Data from fullterm infants at birth are replicated for term age comparison with preterm group. | |||||||
MSE = mean spherical equivalent. | |||||||
*Denotes a statistically significant difference between preterm and fullterm groups at the 5% level. | |||||||
Birth | Preterm | 0.47* | 2.366 | 1.34 | 1.812 | 0.97* | 1.191 |
Full term | 3.47* | 1.721 | 0.78 | 1.064 | 0.40* | 0.663 | |
Term | Preterm | 0.87* | 1.723 | 0.66 | 0.786 | 0.32 | 0.475 |
Full term | 3.47* | 1.721 | 0.78 | 1.064 | 0.40 | 0.663 | |
6 months | Preterm | 2.07 | 1.682 | 0.82 | 0.890 | 0.30 | 0.603 |
Full term | 2.36 | 0.879 | 0.61 | 0.826 | 0.07 | 0.211 | |
12 months | Preterm | 1.86 | 1.419 | 0.45 | 0.566 | 0.12 | 0.376 |
Full term | 1.11 | 0.405 | 0.36 | 0.748 | 0.11 | 0.197 | |
4 years | Preterm | 1.64 | 1.430 | 0.24 | 0.444 | 0.16 | 0.447 |