Trigonelline can treat glaucoma. Many patients with glaucoma are those with increased intraocular pressure, so now the pressure is lowered by this drug. There are three main ways to lower IOP: 1) increase atrial aqueous outflow; 2) inhibit atrial aqueous production; and 3) reduce the volume in the eye. The main effect of tricarpine is to reduce IOP by increasing atrial water outflow, which can treat closed-angle glaucoma and also open-angle glaucoma, as follows: 1. Closed-angle glaucoma: tricarpine can directly excite the pupillary sphincter and narrow the pupil, which can increase the tension of the iris, lift the blockage of the peripheral iris to the trabecular canal, reopen the atrial angle and increase atrial water outflow, so it is 2, open-angle glaucoma: Mao Guo Yunxiang Yin can play a certain role in lowering intraocular pressure, mainly by stimulating the contraction of the ciliary muscle, pulling the scleral protrusion and trabecular canal, reducing the resistance to the outflow of atrial fluid and increasing the outflow of atrial fluid. This drug has certain side effects, such as pain in the arch of the eyebrow, darkening of vision, and deepening of myopia. If high concentrations of frequent eye drops are used, it may also produce gastrointestinal reactions, headache, sweating and other symptoms of systemic toxicity.