“…26 The nature of the present study was mainly explorative, and gene expression in the whole eye was analyzed. Whereas different parts of the eye have different metabolic demands and susceptibility to oxygen supply (hypoxia-hyperoxia), 27,28 the retina is at particular risk to hypoxic damage. Exposure to hypoxia will increase the burst of reactive oxygen species (ROS) in the newborn, and even higher levels are seen after hyperoxia during resuscitation.…”