Glaucoma is an ancient disease that has been documented in medical books for a long time, but its true pathogenesis is still not well understood. However, through years of research and observation, doctors have found that the risk factors for glaucoma are becoming clear: 1. Age. Over the age of 40 is the age when glaucoma becomes “more prevalent”. Doctors recommend that people over the age of 40 should have a medical checkup at a glaucoma specialist every two years; over the age of 60, once a year. 2. Race. The Asian population, especially the East Asian, Northeast Asian and Eskimo populations, are the most prevalent group of people with closed-angle glaucoma, which have a common feature: hyperopia. Therefore, when you are young, your vision is particularly good, claiming to be able to see 1.5 or even 2.0, after reaching middle age, you need to do regular eye examinations. 3. Family history. Both open-angle and closed-angle glaucoma have a certain tendency to develop in families. Where there is a family history of glaucoma, the age of onset of glaucoma is 10 years earlier than that of the normal population. 4. Myopia. Myopia is a recognized risk factor for the development of open-angle glaucoma, and the inherent fundus condition of myopia itself makes the diagnosis of glaucoma more difficult, we recommend that people with high myopia need to do regular eye examinations. 5, corneal thickness. A thin central cornea, less than 520 microns, is one of the risk factors for glaucoma. 6, eye pressure. In the past, people were judged by the level of intraocular pressure to determine the presence of glaucoma, but now the study found that at least half of glaucoma, intraocular pressure never exceeded the “normal range”, which brings new understanding to the prevention and treatment of glaucoma. Elevated IOP is not a diagnostic criterion for open-angle glaucoma, but it is still a diagnostic indicator for other types of glaucoma. If the IOP is significantly higher than the original or exceeds the upper limit of the normal range, i.e., 21 mmHg, regular checkups are still needed. The medical term risk factors means that people with these conditions are relatively susceptible to glaucoma. Glaucoma may also occur secondary to long-term hormone use, a history of eye trauma or surgery. Glaucoma, in some cases, is sudden, such as acute closed-angle glaucoma, which is easily triggered when the lighting is dark or emotional, so we recommend that people with risk factors for closed-angle glaucoma avoid going to the cinema or watching TV at home with the lights on and not off. However, for open-angle glaucoma, going to the movies or taking sedative drugs rarely has a significant effect.