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 Experiment Videos

Repeatability of ocular blood flow pneumotonometry.

Archana Bhan1, Jonathan Bhargava, Stephen A Vernon

  • 1Division of Ophthalmology and Visual Sciences, Queens Medical Centre, Nottingham, England. abhan9@hotmail.com

Ophthalmology
|August 15, 2003
PubMed
Summary

The ocular blood flow (OBF) pneumotonometer showed poorer repeatability than the Goldmann tonometer for measuring intraocular pressure (IOP). This suggests the OBF pneumotonometer may not be reliable for IOP screening.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

Neuropathic Corneal Pain and Blepharospasm: A Case Series.

Diagnostics (Basel, Switzerland)·2026
Same author

Noncontact Esthesiometer: Large Cohort Study on Agreement with Contact Method and Correlations with Corneal Nerves and Ocular Surface.

Ophthalmology science·2026
Same author

Design and Rationale of the pERSonalized cardIovascuLar dIsease prEvention, treatmeNt, and CarE (RESILIENCE) study.

Contemporary clinical trials·2026
Same author

Endometrial injury in women undergoing in vitro fertilisation (IVF).

The Cochrane database of systematic reviews·2026
Same author

Tear cytokine dataset in patients with allogeneic stem cell transplant treated with topical cyclosporine.

Data in brief·2026
Same author

Tear Biomarkers of Topical Sirolimus in Meibomian Gland Dysfunction: A Randomized Trial.

Clinical ophthalmology (Auckland, N.Z.)·2026

Area of Science:

  • Ophthalmology
  • Biomedical Engineering
  • Medical Instrumentation

Background:

  • Accurate intraocular pressure (IOP) measurement is crucial for diagnosing and managing glaucoma.
  • Existing tonometry methods have varying degrees of repeatability and agreement.
  • Ocular blood flow (OBF) pneumotonometry is a newer technique for IOP assessment.

Purpose of the Study:

  • To evaluate the repeatability of ocular blood flow (OBF) pneumotonometry.
  • To assess the agreement between OBF pneumotonometry and Goldmann tonometry for IOP measurement.

Main Methods:

  • An instrument evaluation study was conducted.
  • Ten healthy female subjects participated.
  • Intraocular pressure (IOP) was measured 10 times on different occasions using both OBF pneumotonometry and Goldmann tonometry.

Related Experiment Videos

Main Results:

  • OBF pneumotonometry yielded higher mean IOP readings compared to Goldmann tonometry (P < 0.001).
  • Repeatability coefficients were worse for the OBF pneumotonometer (7.06-7.66) than for the Goldmann tonometer (3.87-4.81).
  • The Bland-Altman analysis revealed significant bias and wide limits of agreement between the two methods.

Conclusions:

  • The OBF pneumotonometer demonstrated inferior repeatability compared to the Goldmann tonometer in healthy females.
  • The findings question the clinical utility of the OBF pneumotonometer for accurate IOP measurement.
  • The OBF pneumotonometer may lead to a high rate of false positives in IOP screening programs.