Clinically, intraocular pressure (IOP) of 22 to 24 mm Hg is slightly above normal, and continuous monitoring is required to determine whether it is serious. Intraocular pressure (IOP) is the pressure of the contents of the eyeball acting on the wall of the eyeball. Generally speaking, the normal IOP is 10~21 mmHg, and IOP 22~24 mmHg is slightly higher than the normal value, but IOP, like human blood pressure, is in a fluctuating state, and only when it is continuously elevated will it have clinical diagnostic value. There are more reasons for elevated IOP, such as lack of sleep, overuse of eyes, glaucoma, etc. If every measurement is higher than the normal range, it is necessary to carry out atrial angle examination, visual field examination and OCT examination to exclude glaucoma. In general, the normal value of intraocular pressure is the range of screening, a little higher is not a big deal, but you need to review regularly, find problems and timely treatment, so as to avoid delaying the condition.