The purpose of the study is to explore the current incidence rate of retinopathy of prematurity (ROP) in China and to explore more appropriate screening criteria for ROP.
None
Death before the first screening;
Death or loss to follow-up before complete retinal vascularization;
Presence of other diseases causing incomplete retinal vascularization, such as familial exudative vitreoretinopathy, incontinentia pigmenti, or Coats disease;
Coexisting conditions affecting the classification or staging of ROP, such as corneal opacity, congenital cataract, persistent fetal vasculature, retinoblastoma, anophthalmia, Terson syndrome, or other ocular infections or diseases;
Tertiary hospital
Cohort
Prospective
Not listed
The incidence rate of ROP
Gestational age at which treatment-requiring ROP develops
Birthweight at which treatment-requiring ROP develops
Gestational age of infants developing any ROP lesion
Birthweight of infants developing any ROP lesion
Postmenstrual age (PMA) at which ROP lesions occur
PMA at which treatment-requiring ROP occurs
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