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

Glaucoma: Overview01:25

Glaucoma: Overview

1.2K
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...
1.2K
Open Angle Glaucoma: Treatment01:27

Open Angle Glaucoma: Treatment

917
In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
Drugs such as carbonic anhydrase inhibitors, α2- and...
917
Pulse rhythm01:30

Pulse rhythm

1.3K
Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
1.3K
Angle Closure Glaucoma: Treatment01:28

Angle Closure Glaucoma: Treatment

1.1K
Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...
1.1K

You might also read

Related Articles

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

Sort by
Same author

Machine Learning-Based Prediction of Long-Term Intraocular Pressure Fluctuations in Open-Angle Glaucoma.

Ophthalmology science·2026
Same author

Improvement of pattern electroretinogram parameters following glaucoma surgery.

International ophthalmology·2026
Same author

Long-Term Patient Acceptability and Adherence to Suprachoroidal Telemetric Intraocular Pressure Monitoring in Glaucoma.

Journal of glaucoma·2026
Same author

Aqueous humour outflow improvement after excimer laser trabeculostomy.

The British journal of ophthalmology·2026
Same author

Long-Term in vivo Positional Stability of a Suprachoroidal Telemetric Intraocular Pressure Sensor Implant.

Clinical ophthalmology (Auckland, N.Z.)·2025
Same author

Intraocular Pressure Fluctuations Recorded by a Telemetric Sensor after Nonpenetrating Glaucoma Surgery in Primary Open-Angle Glaucoma.

Ophthalmology. Glaucoma·2025
Same journal

Perimetric Outcomes of Melbourne Rapid Field Perimetry in Patients With Glaucoma: A Systematic Review and Meta-Analysis.

Journal of glaucoma·2026
Same journal

Rethinking Dry Eye and Ocular Surface Disease in Glaucoma: Pathophysiology, Diagnosis, and Management.

Journal of glaucoma·2026
Same journal

Outcome of Gonioscopy-Assisted Transluminal Trabeculotomy in Uveitic Glaucoma.

Journal of glaucoma·2026
Same journal

"Letter to the Editor: Myopic Shift Induced By Omidenepag Isopropyl 0.002% in Patients With Primary Open-Angle Glaucoma, Jan 2026.

Journal of glaucoma·2026
Same journal

Comparative Evaluation of Functional Aqueous Humor Outflow in Primary Open Angle Glaucoma versus Primary Angle Closure Glaucoma using Aqueous Angiography.

Journal of glaucoma·2026
Same journal

Patient and Neighborhood Factors Influencing Glaucoma Medication Adherence.

Journal of glaucoma·2026
See all related articles

Related Experiment Video

Updated: Jan 7, 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

10.4K

24-Hour Intraocular Pressure Rhythms and Measurement Frequency in Glaucoma Using an Intraocular Telemetry Sensor.

Julien Torbey1, Robert N Weinreb2, Harsha L Rao3

  • 1Swiss Visio Glaucoma Research Center, Montchoisi Clinic, Lausanne, Switzerland.

Journal of Glaucoma
|December 16, 2025
PubMed
Summary
This summary is machine-generated.

Five daily intraocular pressure (IOP) measurements, spaced over 18 hours, effectively capture the 24-hour IOP rhythm in glaucoma patients. This frequency provides sufficient data for monitoring diurnal IOP patterns outside of typical clinic hours.

Keywords:
24-h rhythmglaucomaintraocular pressureopen angle glaucoma

More Related Videos

Translaminar Autonomous System Model for the Modulation of Intraocular and Intracranial Pressure in Human Donor Posterior Segments
08:55

Translaminar Autonomous System Model for the Modulation of Intraocular and Intracranial Pressure in Human Donor Posterior Segments

Published on: April 24, 2020

3.4K
Ultrasound Cyclo Plasty in Eyes with Glaucoma
05:05

Ultrasound Cyclo Plasty in Eyes with Glaucoma

Published on: January 26, 2018

12.6K

Related Experiment Videos

Last Updated: Jan 7, 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

10.4K
Translaminar Autonomous System Model for the Modulation of Intraocular and Intracranial Pressure in Human Donor Posterior Segments
08:55

Translaminar Autonomous System Model for the Modulation of Intraocular and Intracranial Pressure in Human Donor Posterior Segments

Published on: April 24, 2020

3.4K
Ultrasound Cyclo Plasty in Eyes with Glaucoma
05:05

Ultrasound Cyclo Plasty in Eyes with Glaucoma

Published on: January 26, 2018

12.6K

Area of Science:

  • Ophthalmology
  • Biomedical Engineering
  • Medical Devices

Background:

  • Implantable intraocular pressure (IOP) sensors offer continuous 24-hour monitoring for glaucoma patients.
  • Determining the optimal frequency for IOP measurements is crucial for accurately reflecting the diurnal IOP rhythm.

Purpose of the Study:

  • To assess the minimum number of daily IOP measurements needed to reliably characterize the 24-hour IOP rhythm in glaucoma patients.
  • To evaluate the effectiveness of implantable IOP sensors in capturing diurnal IOP variations.

Main Methods:

  • Twenty-two primary open-angle glaucoma (POAG) patients with implanted sulcus-based IOP sensors were analyzed.
  • The study assessed the correlation between the number of daily IOP measurements and the characterization of the 24-hour IOP rhythm, including peak and trough timing.
  • Statistical analysis included student T-test and kernel-density estimation.

Main Results:

  • Peak IOP values were most frequent in the early morning (4-5 am), and trough values occurred in the late night (11 pm-12 am).
  • Five evenly distributed IOP measurements over an 18-hour period were sufficient to characterize the 24-hour IOP rhythm.
  • Additional measurements beyond five did not significantly improve the characterization of diurnal IOP patterns.

Conclusions:

  • Five daily IOP measurements, evenly spread over 18 hours, provide adequate information for assessing the diurnal IOP rhythm in glaucoma patients.
  • Real-world adherence showed an average of four measurements over 14 hours, indicating a gap between ideal recommendations and practice.