Glaucoma is associated with genetics: 1. Primary open-angle glaucoma: the incidence of glaucoma in the patient’s family and relatives is 6.6%, much higher than the incidence of glaucoma in the normal population. It is believed that the incidence of POAG among siblings may be 3.7 times higher than that of the general population; the family history of POAG patients accounts for 13%-15%. 2, primary angle-closure glaucoma (PACG): hereditary. 20% of the family members of PACG patients have the potential for atrial angle closure, which means the possibility of PACG. The risk of glaucoma has been reported to be six times higher in those with a family history of closed-angle glaucoma than in those without a family history. All relatives of glaucoma patients should undergo glaucoma-related screening tests after 40.