The types of eye drops commonly used in open-angle glaucoma are pupil shrinking agents (such as Hirsutum officinale eye drops), β-adrenergic receptor blockers (such as levobunolol hydrochloride eye drops), and prostaglandin derivatives (such as latanoprost eye drops). 1. Pupil shrinking agent: this type of drug can stimulate the ciliary muscle contraction, promote the outflow of atrial fluid, reduce intra-atrial pressure, commonly used drugs such as Trichostatin Eye Drops. 2. β-adrenergic receptor blocker: this type of drugs can inhibit the production of waterproof, thus reducing intraocular pressure, commonly used drugs are timolol eye drops, levobunolol hydrochloride eye drops, etc.. 3. Prostaglandin derivatives: these drugs can be used to reduce intraocular pressure, commonly used drugs are latanoprost eye drops. It is recommended that patients with open-angle glaucoma consult a doctor in a timely manner, strictly under the guidance of a physician to use medication, never self-medication.