Tonometer

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tonometer

[tō′näm·əd·ər]
(medicine)
An electronic instrument that measures hydrostatic pressure within the eye: when placed in position, a tiny movable plate is pressed against the eye, flattening a circular section of the cornea (no eyeball anesthesia is required); a current is then sent through a small electromagnet, of such value that it will just pull the plate away from the eye; the value of the current is proportional to eye pressure; a measurement can be made in about 1 second; used in diagnosis of glaucoma. Also known as electronic tonometer.

Tonometer

 

an instrument for measuring pressure or tension—specifically, blood pressure in the arteries, intraocular pressure, and muscle tone or tension.

References in periodicals archive ?
Chinese scholars actually struggling over ideas concerning restored tuning devices, templates and sketches for bell and flute tonometrics, the appropriateness of different occasions and venues, and even hints at scoring-prosody, as I have shown here.
Basic value of the tonometric measurement on the injured side shall not exceed 50% of the respective value of the contra-lateral side.
Blood pressure was monitored continuously, either via the arterial catheter or noninvasively by a finger oscillometric (Finometer or Portapres; TNO) or radial tonometric (Colin) device.
Measurements on purified FPLC fractions were made using standard tonometric techniques at pH 7 at 20[degrees]C.
8) An arterial tonometric method proved unreliable in extensive pilot studies by the first author at the FBI Academy, Quantico, Virginia.