To better understand the role of inheritance we performed blood genetic testing of 25 (86.2%) registered children and their parents to identify one or more of the known 24 genes, associated with congenital glaucoma (CNTNAP2, COL11A1, COL4A1, CYP1B1, FOXC1, FOXE3, LMX1B, LOXL1, LTBP2, MAF, MYOC, OPA1, OPA3, OPTN, PAX6, PCMTD1, PITX2, PITX3, PLEKHA7, ST18, TBK1, TEK, TMEM126A, WDR36). The gene discussed is CYP1B1; the disease is congenital glaucoma.