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Related to applanation tonometer: tonometry, Schiotz tonometer


1. Any of various instruments for measuring pressure or tension.
2. An instrument for measuring hydrostatic pressure within the eyeball, used to detect glaucoma.
3. Music An instrument, such as a graduated set of tuning forks, used to determine the pitch or vibration rate of tones.

[Greek tonos, tension; see tone + -meter.]

to′no·met′ric (tō′nə-mĕt′rĭk) adj.
to·nom′e·try n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


the art or science of measuring tones, especially with a tonometer. — tonometrist, n. — tonometric, adj.
See also: Tuning
-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.tonometry - the measurement of intraocular pressure by determining the amount of force needed to make a slight indentation in the cornea
measurement, measuring, mensuration, measure - the act or process of assigning numbers to phenomena according to a rule; "the measurements were carefully done"; "his mental measurings proved remarkably accurate"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


n. tonometría, medida de la presión o tensión.
English-Spanish Medical Dictionary © Farlex 2012
References in periodicals archive ?
Intraocular pressure was measured using standard Goldmann applanation tonometry (AT 900 - Applanation tonometer, Haag Streit AG, Germany).
The most commonly used tonometers are the TonoPen XL (Reichart; Depew, NY, USA; applanation tonometer) and the TonoVet (Icare; Tiolat, Helsinki, Finland; rebound tonometer).
In healthy subjects, the increase in IOP between sitting and supine position was reported as 1.8 mmHg using Perkins applanation tonometer, 2.5-3.9 mmHg with pneumotonometer, 1.2 mmHg with Tono-Pen, and 4.1 mmHg with Goldman applanation tonometry.
Intraocular pressure was measured in both the eyes using Goldmann applanation tonometer [9] by applying 0.05% proparacaine eye drops as topical anaesthesia and 2% fluorescein to stain tear film.
It is possible to measure the intraocular pressure of birds with applanation tonometer (Tonopen[R]), which requires the instillation of topical anesthetic on the surface of the cornea 10 to 15s before the measurement, or a rebound tonometer (Tonovet[R], Tonovet Plus[R]), that doesn't require topical anesthesia (WILLIS & WILKIE, 1999; BAYON et al., 2007; WILLIAMS, 2012).
IOP of right and left eye was measured routinely one time (between 1000-1200 Hrs) through goldmann applanation tonometer which is a gold standard for IOP measurement.
According to the ophthalmological examination protocol, all patients were subjected to visual acuity test using Snellen chart; ocular tension measurement using Goldmann applanation tonometer; biomicroscopic examination; central 10-degree visual field test using Octopus 900 (Interzeag AG, Schlieren-Zurich, Switzerland); fundus autofluorescence photography and color fundus photograph examination using Visucam NM/FA (Carl Zeiss, Germany), and macular RGC-IPL thickness and peripapillary retinal nerve fiber layer (RNFL) thickness measurements using Cirrus high-definition OCT, model 5000 (Carl Zeiss Meditec Inc., Jena, Germany).
The Goldmann applanation tonometer (GAT) and noncontact tonometer (NCT) both use an applanation principle.
Their IOPs were measured with Goldmann applanation tonometer. Results: The mean IOPs (MIOP) in pregnant women in three trimesters of pregnancy were 16.4 [+ or -] 2.4 mmHg, 14.6 [+ or -] 2.2 mmHg, and 12.2 [+ or -] 1.6 mmHg, respectively.
This visual recognition feature considers the clinical use of a Goldmann applanation tonometer.
Nowadays, several methods of IOP measurement have been developed for clinical use, including the gold-standard Goldmann applanation tonometer (GAT), the dynamic contour tonometer (DCT), TonoPen, and Icare rebound tonometer.