Trabecular meshwork pigmentation is a manifestation of the clinical diagnosis of pigmentary glaucoma. Pigmentary glaucoma is a secondary open-angle glaucoma caused by pigmentation of the anterior segment of the eye. However, it is entirely possible to avoid the disease through prevention rather than treatment. Here are some preventive measures. 1. Avoid overwork. Whether it is physical work or mental work, the body is prone to fluctuations in intraocular pressure after overwork, so prevention of glaucoma should pay attention to the regularity of life, work and rest, avoid overwork. 2, less in the dark environment work or entertainment. People who work in a dark room, every 1 to 2 hours to get out of the dark room or appropriate lighting. Emotionally excited people, to watch fewer movies, watching TV should also open a small light next to the TV lighting. 3, to maintain a good sleep. Sleep restlessness and insomnia can easily cause an increase in intraocular pressure and induce glaucoma. Elderly people should wash their feet and drink milk before going to bed to help them fall asleep, and take hypnotic drugs if necessary, especially for people with high intraocular pressure. 4, do not overeat and binge eat. Binge eating and drinking can raise the IOP and trigger glaucoma. The elderly should “eat eight portions of rice”, do not smoke, do not drink alcohol, do not drink coffee, do not drink strong tea, do not eat spicy and irritating food. 5, maintain a happy mood. The reason for this is to keep a happy mood, not to be angry and anxious, and not to be anxious about household chores.