The fully automatic non-contact tonometer has the characteristics of joystick-free, fully automatic focusing, three-dimensional automatic eye tracking, and quiet operation. When used for fully automatic jet pressure measurement, it will produce a gentle jet wave. The pressure value of the air wave hitting your cornea and then reflected back is used to determine the level of your intraocular pressure. The patient only needs to rely on the forehead rest of the instrument to gaze at the fixation target, and using the patented joystick-free autofocus system, the operator only needs to press a button to activate the intraocular pressure (IOP) measurement program. By sliding the forehead rest left and right, the upgraded internal software can automatically identify the left and right eyes. Intraocular pressure is harmful to the eyes. If it is too high, the eyeballs will feel uncomfortable and you need to go to the hospital