Glaucoma can be treated with eye drops, and eye drops to reduce intraocular pressure are needed to prevent and delay the progress of glaucoma. For example, currently commonly used drugs include pilocarpine nitrate eye drops, timolol maleate eye drops, bromonidine tartrate eye drops, brinzolan eye drops, latanoprost eye drops, travoprost eye drops, etc. However, the choice of drugs must be made by the doctor after fully examining the patient's eye conditions, analyzing and evaluating the severity of the disease. If the drug conservative treatment can not control the intraocular pressure to a safe level, it is necessary to reduce the intraocular pressure through laser treatment or surgical treatment.