Schiφtz's indentation tonometer measurement

Schiφtz's indentation tonometer measurement method, which measures the intraocular pressure by indenting the central part of the cornea with a weight of weight. 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. Basic Information Specialist Category: Ophthalmic Examination Category: Applicable gender: whether men and women apply fasting: not fasting Tips: Please cooperate with the doctor when checking. 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 results 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 patients with glaucoma. Precautions Taboo before check: emotional stress. Requirements for inspection: cooperate with the doctor. Inspection process 1 The examinee sits in front of the instrument and looks at the observation hole. A circular disc is visible, with the upper half being red or green and the lower half being yellow. 2 The examiner adjusts the monochrome knob on the right side to adjust the brightness of the yellow light to the 12.5 scale, and the examinee rotates the left color mixing knob until the color and brightness of the upper and lower halves are exactly the same. Make a note of the reading and the normal equal point is about 70 marks. 3 The examiner turns the color mixing knob to 0 degrees, and the subject rotates the monochrome knob. Each time the mixing knob is added 10°, the examiner rotates the monochrome knob until it is equal, records its equal point, repeats three times, and takes the average value. 4 Record each result in a dedicated form and draw an equal curve. Not suitable for the crowd Inappropriate people: those with normal intraocular pressure.

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