Drugs used to treat glaucoma include pupil shrinking drugs, beta-adrenergic receptor blockers, carbonic anhydrase inhibitors, hyperosmolar agents and so on. 1. Pupil shrinking drugs: Pupil shrinking drugs can make the patient’s pupil narrow and the intraocular pressure decrease, which can be used for the treatment of glaucoma, such as Trichomonas medicinal eye drops. 2. β-adrenergic receptor blockers: the role of β-adrenergic receptor blockers is to bind with the β-receptors of the non-pigmented epithelial cells of the intraocular ciliary body to reduce the formation of aqueous humor and intraocular pressure, such as timolol eye drops and levobunolol hydrochloride eye drops. 3. Carbonic anhydrase inhibitors: Carbonic anhydrase inhibitors are commonly used in the treatment of glaucoma, which can reduce aqueous humor formation, such as acetazolamide, vinpocetine and so on. 4. Hypertonic agent: Hypertonic agent can increase the osmotic force of blood, promote the dehydration of eye tissues, and reduce the patient’s intraocular pressure, such as mannitol and so on. It is recommended that patients with glaucoma consult the hospital in time to assess their condition and follow the doctor’s instructions for treatment.