PTGS2 and infection: Among all the differentially expressed genes in the retinal organoids and monolayer cultures, 10 genes (BDKRB1, BDKRB2, CXCL1, MMP9, F3, RARRES2, PTGS2, IL33, LY96, and VCAM1) were upregulated after the infection by the SARS-CoV-2 pseudovirus.