There are many drugs and eye drops to reduce intraocular pressure, and the following 3 types are commonly used: (1) increase aqueous humor outflow: to reduce the resistance of trabecular meshwork aqueous humor discharge, commonly used 1%-4% hairy fruit rutaecarpine eye drops; to increase the outflow of aqueous humor through the uveoscleral channel, commonly used latanoprost eye drops. (2) Inhibit atrial aqueous generation: commonly used compound timarolol eye drops, levobunolol eye drops, carteolol eye drops, etc. (3) Reducing intraocular volume: the use of hypertonic dehydrating agents along with the above two types of eye drops can increase the effect of lowering intraocular pressure, commonly used are 50% glycerol and 20% mannitol. It is recommended that patients use medication under the guidance of a professional doctor, do not use medication without authorization, in order to avoid adverse consequences.