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

Vapor Pressure02:34

Vapor Pressure

41.0K
When a liquid vaporizes in a closed container, gas molecules cannot escape. As these gas phase molecules move randomly about, they will occasionally collide with the surface of the condensed phase, and in some cases, these collisions will result in the molecules re-entering the condensed phase. The change from the gas phase to the liquid is called condensation. When the rate of condensation becomes equal to the rate of vaporization, neither the amount of the liquid nor the amount of the vapor...
41.0K
Definition and Measurement of Pressure: Atmospheric Pressure, Barometer, and Manometer02:57

Definition and Measurement of Pressure: Atmospheric Pressure, Barometer, and Manometer

43.6K
Gas pressure is caused by force exerted by gas molecules colliding with the surfaces of objects. Although the force of each collision is very small, any surface of an appreciable area experiences a large number of collisions in a short time, which can result in high pressure.
43.6K
Constant Pressure Calorimetry03:02

Constant Pressure Calorimetry

97.8K
Calorimetry is a technique used to measure the amount of heat involved in a chemical or physical process or to measure the heat transferred to or from a substance. The heat is exchanged with a calibrated and insulated device called the calorimeter. Calorimetry experiments are based on the assumption that there is no heat exchange between the insulated calorimeter and the external environment. The well-insulated calorimeters prevent the transfer of heat between the calorimeter and its external...
97.8K
Vapor Pressure Lowering03:28

Vapor Pressure Lowering

31.4K
The equilibrium vapor pressure of a liquid is the pressure exerted by its gaseous phase when vaporization and condensation are occurring at equal rates:
31.4K
Osmosis and Osmotic Pressure of Solutions02:40

Osmosis and Osmotic Pressure of Solutions

46.8K
A number of natural and synthetic materials exhibit selective permeation, meaning that only molecules or ions of a certain size, shape, polarity, charge, and so forth, are capable of passing through (permeating) the material. Biological cell membranes provide elegant examples of selective permeation in nature, while dialysis tubing used to remove metabolic wastes from blood is a more simplistic technological example. Regardless of how they may be fabricated, these materials are generally...
46.8K
Concept of Pressure at a Point01:15

Concept of Pressure at a Point

791
The concept of pressure at a point in a fluid establishes that pressure within a fluid is uniform in all directions at a specific location. This uniformity occurs because fluid molecules exert force evenly across any point due to their random motion and continuous collisions within the fluid. Pressure at a point is determined by the surrounding fluid molecules and is influenced by factors like depth and density, rather than by shape or orientation.
In a fluid at rest, pressure acts equally in...
791

You might also read

Related Articles

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

Sort by
Same author

Flavonoids from <i>Acer okamotoanum</i> Inhibit Adipocyte Differentiation and Promote Lipolysis in the 3T3-L1 Cells.

Molecules (Basel, Switzerland)·2020
Same author

Improvement of digital PCR conditions for direct detection of KRAS mutations.

Journal of clinical laboratory analysis·2020
Same author

Clinical Practice Guideline for Endoscopic Resection of Early Gastrointestinal Cancer.

Clinical endoscopy·2020
Same author

Polymorphisms in Glycolysis-Related Genes Are Associated with Clinical Outcomes of Paclitaxel-Cisplatin Chemotherapy in Non-Small Cell Lung Cancer.

Oncology·2020
Same author

Improved detection of hepatocellular carcinoma by dynamic computed tomography in cirrhotic patients with chronic hepatitis B: A multicenter study.

Journal of gastroenterology and hepatology·2020
Same author

Development and growth of auricular cartilage and muscles: A study using human fetuses.

International journal of pediatric otorhinolaryngology·2020

Related Experiment Video

Updated: Feb 11, 2026

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

3.5K

Intraocular Pressure Fluctuation: Is It Important?

Ji Hyun Kim1,2, Joseph Caprioli1

  • 1Stein Eye Institute, David Geffen School of Medicine, University of California, Los Angeles, California, USA.

Journal of Ophthalmic & Vision Research
|May 3, 2018
PubMed
Summary

Intraocular pressure (IOP) fluctuation, not just high levels, may impact glaucoma progression. Focusing on consistent IOP control, or "modulation," is recommended over solely reducing IOP for better disease management.

Keywords:
FluctuationIntraocular PressureReview

More Related Videos

Use of Rabbit Eyes in Pharmacokinetic Studies of Intraocular Drugs
10:02

Use of Rabbit Eyes in Pharmacokinetic Studies of Intraocular Drugs

Published on: July 23, 2016

33.4K
Author Spotlight: Enhancing Visual Outcomes in Cataract Surgery: A Novel Technique to Prevent Posterior Capsular Opacification Through IOL Rotation
04:59

Author Spotlight: Enhancing Visual Outcomes in Cataract Surgery: A Novel Technique to Prevent Posterior Capsular Opacification Through IOL Rotation

Published on: July 7, 2023

3.1K

Related Experiment Videos

Last Updated: Feb 11, 2026

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

3.5K
Use of Rabbit Eyes in Pharmacokinetic Studies of Intraocular Drugs
10:02

Use of Rabbit Eyes in Pharmacokinetic Studies of Intraocular Drugs

Published on: July 23, 2016

33.4K
Author Spotlight: Enhancing Visual Outcomes in Cataract Surgery: A Novel Technique to Prevent Posterior Capsular Opacification Through IOL Rotation
04:59

Author Spotlight: Enhancing Visual Outcomes in Cataract Surgery: A Novel Technique to Prevent Posterior Capsular Opacification Through IOL Rotation

Published on: July 7, 2023

3.1K

Area of Science:

  • Ophthalmology
  • Glaucoma Research
  • Ocular Hypertension

Background:

  • Elevated intraocular pressure (IOP) is a primary risk factor for glaucoma development and progression.
  • IOP is known to fluctuate significantly over time, not remain static.
  • The role of IOP fluctuation as an independent risk factor for glaucoma progression is debated.

Purpose of the Study:

  • To review the definition and impact of intraocular pressure fluctuation on glaucoma.
  • To analyze evidence supporting and refuting IOP fluctuation as a risk factor for glaucomatous damage.
  • To reconcile apparently conflicting study results regarding IOP fluctuation and glaucoma progression.

Main Methods:

  • Literature review of studies on IOP fluctuation and glaucoma progression.
  • Analysis of evidence for and against IOP fluctuation as an independent risk factor.
  • Synthesis of findings considering patient populations, disease stages, and IOP levels.

Main Results:

  • Studies on IOP fluctuation and glaucoma progression have yielded varied conclusions.
  • Disparate results can be reconciled by considering differences in patient cohorts and study parameters.
  • IOP fluctuation appears to be a significant factor in glaucoma progression.

Conclusions:

  • IOP fluctuation should be considered alongside IOP levels in glaucoma management.
  • Recommends 'IOP modulation'—consistent control—over simple 'IOP reduction'.
  • Quality-based IOP control may be superior to quantity-based reduction for preventing glaucoma progression.