Demographic data of the preterm children.

<p>Demographic data of the preterm children.</p

Comparison of optic nerve head parameters between the preterm and term children.

*<p>Independent t-test<0.05 was considered statistically significant.</p

Comparison of the mean values of the optic nerve head parameters in the preterm children with other published studies.

<p>SD, standard deviation; HRT, Heidelberg Retinal Tomography; Optical Coherent Tomography; NA, data not available.</p>*<p>Means and 95% confidence interval.</p>**<p>Median.</p

Distribution of the age, gender and visual acuity.

<p>SD, standard deviation.</p