We found 10 candidate POAG genes that were highly expressed in both the CPE and NPE (AKAP13, C1QBP, CHSY1, COL8A2, CYP1B1, FBN1, IBTK, MFN2, TMCO1, and TMEM248), three genes that were expressed significantly higher in the CPE (CDH1, CDKN2B, and SIX1), and six genes that were expressed significantly higher in the NPE (ATOH7, CYP1B1, FBN1, MYOC, PAX6, and SIX6). This evidence concerns the gene COL8A2 and open-angle glaucoma.