Screening for retinopathy of prematurity in China: a five-year cohort study in seven screening centers

Abstract Background To analyze the demographic characteristics of retinopathy of prematurity (ROP) in China, attempting to propose optimized screening criteria and hopefully providing valuable information for future updates to the ROP guideline. Methods A multicenter, retrospective-cohort study was conducted. The study included infants born between January 1, 2018, and July 31, 2023, who underwent ROP screening and were diagnosed with ROP at seven screening centers in China. Examinations were carried out in accordance with the ROP guidelines in 2014: infants with a gestational age (GA)