In the clinical often through the finger touch method, non-contact intraocular pressure meter measurement method, contact intraocular pressure meter measurement method and other methods to measure intraocular pressure. 1. Finger touch method. After washing your hands, use the index fingers of both hands to gently press the eyeballs to determine the hardness of the eyeballs. If the hardness of the pressed eyeball is the same as the hardness of the nose, the intraocular pressure is mostly within the normal range. If the hardness of the eyeballs is the same as the hardness of the forehead, most of the eye pressure is high. If the hardness of the pressure and the hardness of the lips are the same, most of the IOP is too low. 2. Non-contact tonometer measurement method. The patient keeps sitting position, head is placed on the support of the tonometer, both eyes are open and looking at the red indication point in the measuring instrument for detection, it is recommended to measure three times continuously and take the average value. 3. Contact tonometer measurement. The patient takes the supine position, after the conjunctival sac is dripped with surface anesthetics, the main plate of the contact tonometer is placed vertically on the corneal surface, and the scale on the tonometer is observed to get the corresponding intraocular pressure value. Measurement of intraocular pressure needs to be carried out in the hospital.