منابع مشابه
Influence of topical anesthesia on tonometric values of intraocular pressure.
The air pulse noncontact tonometer provides a safe and reliable method for measuring intraocular pressure (IOP), and makes it possible to avoid topical anesthesia. Based on previous reports that suggested possible anesthetic-induced IOP variations, this study was undertaken to investigate with this procedure the influence of local anesthetics on IOP and of some topically used drugs that could m...
متن کاملA positioning sensor for tonometric applications
In this paper we present a sensor, which is designed for application in a tonometer, an instrument for the measurement of intraocular pressure. The sensor measures diameter and position of a part of the eye globe that is flattened by the tonometer. The sensor principle is based on a change in resistance of four resistor arrays due to contact with a metallized foil, which flattens a part of the ...
متن کاملTonometric changes of latanoprost-induced intraocular pressure reduction after photorefractive keratectomy.
PURPOSE To assess whether tonometric measurements of the drop in intraocular pressure (IOP) induced by 0.005% latanoprost are modified after photorefractive keratectomy (PRK). METHODS Data from 24 randomly selected eyes of 24 patients (12 men and 12 women, mean age +/- SD: 31.7 +/- 6.2 years) who were undergoing bilateral PRK for myopia (-6.38 +/- 2.26 D) were obtained. Objective refraction, ...
متن کاملEffect of ranitidine on basal and bicarbonate enhanced intragastric PCO2: a tonometric study.
A high intragastric PCO2 (iPCO2), determined tonometrically, is the main factor participating in a low gastric intramucosal pH (pHi) and may point to gastric mucosal ischaemia. iPCO2 might also increase, however, after buffering of gastric acid by bicarbonate; the magnitude of this effect and the efficacy of H2 blockers to prevent it are unclear. Ten healthy volunteers (20-24 years) were studie...
متن کاملDevelopment of a Tonometric Sensor with a Decoupled Circular Array for Precisely Measuring Radial Artery Pulse
The radial artery pulse is one of the major diagnostic indices used clinically in both Eastern and Western medicine. One of the prominent methods for measuring the radial artery pulse is the piezoresistive sensor array. Independence among channels and an appropriate sensor arrangement are important for effectively assessing the spatial-temporal information of the pulse. This study developed a c...
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ژورنال
عنوان ژورنال: British Journal of Ophthalmology
سال: 1919
ISSN: 0007-1161
DOI: 10.1136/bjo.3.10.476