Tonometer measurement

There are many methods for measuring intraocular pressure, including finger test, indentation tonometer measurement, applanation tonometer measurement, and non-contact tonometry. Let the examinee look down, the examiner alternately presses the eyeball on the outside of the upper part of the upper jaw with both index fingers, and checks the eyes to compare the intraocular pressure of the two eyes. The person with high intraocular pressure is hard to touch, and the one with low eye pressure is soft. It can also be compared with normal intraocular pressure. Basic Information Specialist Category: Ophthalmology Classification: Biochemical examination Applicable gender: whether men and women apply fasting: not fasting Tips: Inappropriate people: people with corneal lesions. Normal value The normal human eye pressure value in China is 10-21 mmHg, the average intraocular pressure is 15-16 mmHg, and the average value is 2 times standard deviation (M±2SD) as the normal range. Clinical significance Abnormal result Intraocular pressure is an extremely important factor in the pathogenesis of glaucoma, which is >21mmHg. This part of the intraocular pressure >21mmHg is called ocular hypertension. Need to check the crowd eye pressure error, glaucoma patients. . Precautions Taboo before inspection: alcohol, coffee is prohibited. Requirements for inspection: cooperate with a doctor. Inspection process Finger test method: Let the examinee look down. The examiner alternately presses the eyeball on the upper part of the upper jaw with both index fingers to check the eyes, so as to compare the intraocular pressure of the two eyes. The person with high eye pressure touches hard and the eye pressure is low. It is soft to touch and can be compared with normal intraocular pressure. Not suitable for the crowd Inappropriate people: people with corneal lesions.