Intraocular pressure test is a very routine test in ophthalmology, and the cost of this test is around$10-$20. The purpose of this test is mainly to monitor the change of pressure in the eye, so it can be good for glaucoma, high intraocular pressure, vitreous or post-cataract surgery IOP measurement. And if you need to use glucocorticoid drops after surgery, you also need to do IOP check regularly because glucocorticoids, if used unreasonably in overdose, can easily cause complications like glaucoma, which can lead to an increase in IOP. If, after IOP examination, abnormal elevation of IOP occurs, it is necessary to promptly improve the relevant examination to clarify the specific cause and carry out IOP lowering treatment to avoid irreversible damage to the optic nerve tissue caused by high IOP.