Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Assessing Blood pressure using a doppler ultrasound01:19

Assessing Blood pressure using a doppler ultrasound

2.2K
To obtain accurate blood pressure measurements in clinical settings, especially when traditional methods are insufficient, healthcare professionals utilize the Doppler ultrasound technique. This method uses high-frequency sound waves to detect blood flow within the arteries, which is crucial for patients with conditions that complicate circulatory system assessment.
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:
2.2K
Assessment of blood pressure in brachial artery(two-step method)01:23

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

1.4K
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...
1.4K
Measurement of Blood Pressure01:17

Measurement of Blood Pressure

2.5K
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...
2.5K
Assessment of blood pressure in brachial artery(one-step method)01:15

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

1.0K
This procedural guide systematically measures blood pressure using an oscillometric digital sphygmomanometer, emphasizing accuracy, patient safety, and comfort.
Prepare for the Procedure:
1.0K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Automated Deep Learning Quantification of Avascular Area and Intravitreal Neovascularization in Retinal Flatmounts of Rodent Oxygen-Induced Retinopathy Models.

Translational vision science & technology·2026
Same author

Intermittent hypoxia ameliorates behavioral deficits and exerts neurorestoration in a mouse photothrombotic stroke model.

Theranostics·2026
Same author

Quantitative Swept-Source Optical Coherence Tomography Angiography Indicators of Neurovascular Dysfunction in Alzheimer Disease.

JAMA ophthalmology·2026
Same author

Dendrobium officinale leaf extract extends the mean lifespan in Caenorhabditis elegans via the DAF-16/SOD-3 axis.

Biogerontology·2026
Same author

Association between ocular biometric parameters and scleral rigidity as measured by fundus pulsation optical coherence elastography in eyes with and without glaucoma.

Frontiers in medicine·2026
Same author

Mobile-Based Artificial Intelligence and Ocular Surface Malignancies.

JAMA ophthalmology·2026

Related Experiment Video

Updated: Jan 1, 2026

Subjective Refraction Test Using a Smartphone for Vision Screening
05:36

Subjective Refraction Test Using a Smartphone for Vision Screening

Published on: October 18, 2024

1.6K

Development and validation of a machine learning, smartphone-based tonometer.

Yue Wu1, Ian Luttrell1, Shu Feng2

  • 1Ophthalmology, University of Washington, Seattle, Washington, USA.

The British Journal of Ophthalmology
|December 25, 2019
PubMed
Summary
This summary is machine-generated.

A new smartphone tonometer shows promising results for measuring intraocular pressure (IOP). This portable device offers a viable alternative to traditional tonometers, potentially improving glaucoma diagnosis and management.

Keywords:
intraocular pressure

More Related Videos

Using an Automated Hirschberg Test App to Evaluate Ocular Alignment
05:40

Using an Automated Hirschberg Test App to Evaluate Ocular Alignment

Published on: March 24, 2020

15.6K
Smartphone Fundus Photography
05:51

Smartphone Fundus Photography

Published on: July 6, 2017

40.0K

Related Experiment Videos

Last Updated: Jan 1, 2026

Subjective Refraction Test Using a Smartphone for Vision Screening
05:36

Subjective Refraction Test Using a Smartphone for Vision Screening

Published on: October 18, 2024

1.6K
Using an Automated Hirschberg Test App to Evaluate Ocular Alignment
05:40

Using an Automated Hirschberg Test App to Evaluate Ocular Alignment

Published on: March 24, 2020

15.6K
Smartphone Fundus Photography
05:51

Smartphone Fundus Photography

Published on: July 6, 2017

40.0K

Area of Science:

  • Ophthalmology
  • Medical Devices
  • Glaucoma Diagnostics

Background:

  • Intraocular pressure (IOP) is a critical factor in glaucoma management.
  • Current clinical tonometers vary in accessibility and cost.
  • A need exists for portable, accurate IOP measurement devices.

Purpose of the Study:

  • To evaluate the accuracy of a prototype smartphone tonometer.
  • To compare smartphone tonometer measurements with established clinical tonometers.
  • To assess the feasibility of using smartphone technology for IOP assessment.

Main Methods:

  • Recruited patients from an academic glaucoma practice.
  • Utilized a smartphone tonometer with fixed force applanation and a machine-learning algorithm.
  • Compared smartphone IOP measurements against Goldmann applanation tonometry (GAT), ICare, pneumotonometry, and Tono-Pen.

Main Results:

  • The smartphone tonometer demonstrated close agreement with GAT (mean difference +0.24 mm Hg).
  • Correlation with GAT was strong (R²=0.67, p<0.001).
  • 97.8% of measurements were within ±5 mm Hg of GAT, with 63.0% within ±2 mm Hg.

Conclusions:

  • Smartphone-based tonometry shows preliminary IOP measurement equivalence to the reference standard.
  • This technology holds potential for accessible and convenient IOP monitoring.
  • Further validation may establish its role in clinical practice.