Objective: To evaluate the efficacy of an oxygen saturation reduction protocol used to supplement preterm newborns (PTNB) hospitalized in a neonatal ICU to prevent the onset of retinopathy of prematurity (ROP). Methods: This is a cohort study performed in a single Neonatal ICU. The first group (pre-protocol, n = 30) used oxygen with hemoglobin saturation > 95%. Since the institution of a new oxygen therapy protocol that maintained hemoglobin saturation between 90% and 95%, the second group was obtained (post-protocol […]