Compare of Effectiveness Cycled Light or Near Darkness on Growth Parameters in Preterm Infants

Infants are exposed to either continuous bright light continuous near darkness or unstructured combination of the two. The investigators primary objective is to determine the effectiveness cycled light and near darkness on growth in preterm infants.

Inclusion Criteria:

• <32 gestational weeks preterm infants

Exclusion Criteria:

• Major congenital anomaly
• Small for gestation age
• Grade III-IV intracranial hemorrhage