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Related Concept Videos

Equipments Used To Measure Blood Pressure01:30

Equipments Used To Measure Blood Pressure

Direct Method
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
Assessment of blood pressure in brachial artery(two-step method)01:23

Assessment of blood pressure in brachial artery(two-step method)

Measuring blood pressure is a fundamental skill in healthcare that aids in diagnosing and monitoring hypertension and other cardiovascular conditions. An aneroid sphygmomanometer, commonly used in clinical settings, offers a manual and precise method for blood pressure measurement. The technique for using this instrument involves specific steps that must be carefully executed to ensure accuracy. The following detailed description outlines a two-step technique for assessing blood pressure using...
Glaucoma: Overview01:25

Glaucoma: Overview

Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...
Measurement of Blood Pressure01:17

Measurement of Blood Pressure

Assessing blood pressure is a standard procedure executed in virtually all medical environments. The method utilized today was established over a hundred years ago by an innovative Russian doctor, Dr. Nikolai Korotkoff. The soft ticking noise, known as Korotkoff sounds, heard while taking blood pressure readings results from turbulent blood flow within the vessels. The apparatus required for this procedure includes a sphygmomanometer, a blood pressure cuff attached to a gauge, and a stethoscope.
Assessment of blood pressure in brachial artery(one-step method)01:15

Assessment of blood pressure in brachial artery(one-step method)

This procedural guide systematically measures blood pressure using an oscillometric digital sphygmomanometer, emphasizing accuracy, patient safety, and comfort.
Prepare for the Procedure:
Potentiometry: Overview01:06

Potentiometry: Overview

Potentiometry is an analytical technique that measures the potential difference between two electrodes in an electrochemical cell without drawing any significant current that could alter the solution's composition. This method employs an indicator electrode, which exchanges electrons with the analyte solution, and a reference electrode with a constant potential. Each electrode is immersed in a solution comprised of two half-cells. In a conventional setup, the reference electrode serves as the...

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Related Experiment Video

Updated: Jun 27, 2026

Trabecular Meshwork Response to Pressure Elevation in the Living Human Eye
09:03

Trabecular Meshwork Response to Pressure Elevation in the Living Human Eye

Published on: June 20, 2015

Tonometry through the ages.

Christoph Kniestedt1, Omar Punjabi, Shan Lin

  • 1Department of Ophthalmology, University Hospital Zurich (USZ), Zurich, Switzerland.

Survey of Ophthalmology
|November 26, 2008
PubMed
Summary
This summary is machine-generated.

Glaucoma is now understood as a complex systemic disorder, not just high eye pressure. Advances in tonometry offer better ways to measure intraocular pressure, a key factor in glaucoma progression.

More Related Videos

Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter
05:14

Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter

Published on: September 16, 2025

Related Experiment Videos

Last Updated: Jun 27, 2026

Trabecular Meshwork Response to Pressure Elevation in the Living Human Eye
09:03

Trabecular Meshwork Response to Pressure Elevation in the Living Human Eye

Published on: June 20, 2015

Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter
05:14

Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter

Published on: September 16, 2025

Area of Science:

  • Ophthalmology
  • Medical Technology

Background:

  • Glaucoma's definition has evolved from solely ocular pressure to a complex systemic disorder.
  • Elevated intraocular pressure (IOP) remains the primary modifiable risk factor for glaucoma progression.

Observation:

  • The understanding of glaucoma's pathophysiology has broadened significantly.
  • Intraocular pressure measurement techniques have undergone substantial development.

Findings:

  • The article reviews the historical progression of tonometry, from early force-tonometers to modern high-technology devices.
  • Modern tonometers provide advanced capabilities for accurate IOP measurement.

Implications:

  • Accurate and consistent IOP measurement is crucial for managing glaucoma effectively.
  • Technological advancements in tonometry aid in the early detection and management of glaucoma.
  • Understanding glaucoma as a systemic disease impacts diagnostic and therapeutic strategies.