TONOMETRY

n. measurement of sound; measurement of pressure, measurement of tension

In music, a tonometer is an instrument used to determine the pitch or vibration rate of tones, such as a tuning fork.Tonometry is the measurement of tension or pressure [1]. A tonometer is an instrument for measuring tension or pressure [2].In ophthalmology, tonometry is the procedure eye care professionals perform to determine the intraocular pressure (IOP), the fluid pressure inside the eye. It is an important test in the evaluation of ocular conditions such as glaucoma as well as conditions such as phthisis bulbi, and iritis. Most tonometers are calibrated to measure pressure in mmHg.
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Tonometry /to·nom·e·try/ measurement of tension or pressure, particularly intraocular pressure. digital tonometry estimation of the degree of [more]Tonometry - Community and Resources

(n.)
The act of measuring with a tonometer;
  

(n.)
measurement of tension, esp. the tension of the eyeball.
  

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