Many family members of glaucoma patients, especially parents of young patients and children, will naturally ask their doctors: I heard that glaucoma is hereditary, we don’t even have glaucoma, how did my child get glaucoma? It should be said that there is no very clear answer to the heredity of glaucoma so far. Clinically, some glaucoma is found to be hereditary in families, while others are not at all. More often than not, glaucoma is found to run in families, meaning that there are several glaucoma patients in a family. Modern scientific research is studying these clinical features of glaucoma at the genetic level and has identified some susceptibility genes for glaucoma, but it is not yet clear that they are the causative genes. This is because not all people with these specific genes develop glaucoma, and most of them develop it after a certain age. Why? The mystery here is being studied scientifically from molecular biology and other aspects. But one thing is certain: people with the same genes are susceptible to a particular disease, especially if they are also living in the same environment, which is a susceptible population for the disease. Who are the susceptible groups for glaucoma? Epidemiological studies have shown that the following factors are associated with glaucoma: 1. Age: As age increases, the chance of glaucoma increases. The prevalence of glaucoma is 0.68% in the general population, 2.1% in the age group above 50 years old, and up to 4%-7% after 65 years old. 2. Family history: The incidence increases in people with a family history. Including parents, siblings or other blood relatives, if someone has glaucoma, its incidence increases 5-10 times. 3. Myopia: Patients with myopia have a higher risk of glaucoma than normal people. 4, diabetes: the risk of glaucoma is higher in diabetic patients than in normal people. 5, high intraocular pressure: high intraocular pressure is an important risk factor. Some people may think that high blood pressure will cause high IOP, but there is no direct link between the two. Normal IOP is between 10-21 mmHg. If your IOP is above normal, you should have a detailed examination and regular follow-up. High IOP without optic nerve damage is called “hypertension.” Long-term follow-up reveals that some patients with hypertension can develop glaucoma. Risk factors vary slightly for different types of glaucoma. For closed-angle glaucoma, the susceptibility groups include small eyes, small corneas, hyperopic or orthokeratology eyes over 40 years old; for open-angle glaucoma, the susceptibility groups include myopia, diabetes, fundus bleeding, and autoimmune diseases. Therefore, it is emphasized that regular (usually 1-2 years) eye examinations should be performed in the high-risk group, that is, the susceptible group, with a view to early detection of glaucoma. People who are at high risk for the development of glaucoma should not therefore fear that they will definitely develop glaucoma, only that the chances of it occurring are higher than in the general population. The occurrence of many diseases is closely related to the environment and mental condition, and glaucoma is a typical psychosomatic disease. Tension, anxiety, worry, stressful work and life, and irregularity can easily lead to dysfunction of the plant nerves, which can contribute to the occurrence or development of glaucoma. Therefore, developing good habits of life and work, combining work and rest, and adjusting tired body and mind in time are very beneficial not only for glaucoma but also for other diseases.