Causes of fundus lesions in premature infants

Ocular fundus disease in premature infants may be related to premature delivery and oxygen inhalation.

1.

Normal retinal vessels in premature infants develop to the nasal side at 36 weeks and reach the temporal edge at 40 weeks. If the child is premature, the lighter the birth weight, the smaller the gestational age, and the immature retina, the higher the probability of ocular fundus disease.

2. Oxygen inhalation in

premature infants is mostly imperfect in respiratory system development, requiring continuous oxygen therapy to improve respiratory function. Oxygen therapy may lead to retinal contraction and proliferation without complete vascularization, vascular endothelial damage and occlusion, and then lead to ocular fundus disease.