Patients with acute closed angle glaucoma can be treated with medications such as Trichostatin Nitrate Eye Drops and Catheterol Hydrochloride Eye Drops as prescribed by the doctor to control the intraocular pressure. Acute closed angle glaucoma is one of the most common types of glaucoma, usually caused by abnormal development of the patient’s atrial angle, which eventually causes the closure of the atrial angle, interrupting the circulation of aqueous humor in the eye, with a large amount of fluid stagnating in the interior of the eye, leading to elevated intraocular pressure and resulting in high intraocular pressure. The patient can be treated with nitroglycerin eye drops to constrict the pupil, pull open the root iris that blocks the atrial angle, and promote the opening of the atrial angle to lower the intraocular pressure. Patients can also use drugs to reduce the secretion of aqueous humor to reduce intraocular pressure, such as carteolol hydrochloride eye drops, brinzolamide eye drops and so on. Patients who are unable to control their IOP to a safe level with conservative medication should consider surgical treatment, such as composite trabeculectomy. Patients with glaucoma are advised to seek prompt medical attention to assess their condition and follow medical advice.