To understand the current situation with the genetic epidemiology of primary congenital glaucoma (PCG) in the world. as well as to identify genotype-phenotype correlations. 87 publications were analyzed from the Pubmed and elibrary databases. mainly the latest 5 years. https://www.itsmajorlook.com/great-deal-Chicago-Cubs-Earrings-Round-Design-p21310-limited-grab/