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

Dynamic contour tonometry: principle and use.

Omar S Punjabi1, Christoph Kniestedt, Robert L Stamper

  • 1Department of Ophthalmology, University of California, San Francisco School of Medicine, San Francisco, California, USA. omar_punjabi@yahoo.com

Clinical & Experimental Ophthalmology
|December 22, 2006
PubMed
Summary
This summary is machine-generated.

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

Association of Gonioscopy Scores with Changes in Intraocular Pressure after Phacoemulsification in a Predominantly Vietnamese Population: A Retrospective Study.

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

Comparable performance of 3D and 2D anterior segment optical coherence tomography in predicting intraocular pressure reduction following cataract surgery.

PloS one·2026
Same author

A Comparison of Vessel Density in Primary Open-Angle Glaucoma and Normal-Tension Glaucoma Patients Using OCT Angiography.

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

Canaliculitis: Too Often Underdiagnosed?

Klinische Monatsblatter fur Augenheilkunde·2026
Same author

Progression of hydroxychloroquine-induced retinopathy after drug cessation.

Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie·2026
Same author

Bilateral Harada-like reaction with bacillary layer detachment after treatment of metastatic signet ring cell carcinoma with pembrolizumab.

Retinal cases & brief reports·2026
Same journal

Biopsy of Iris and Anterior Chamber Tumours: Fine Needle, Minimally Invasive and Excision Techniques - Review.

Clinical & experimental ophthalmology·2026
Same journal

Ray-Tracing-Based Intraocular Lens Power Calculation in Combined Cataract Surgery and Descemet Membrane Endothelial Keratoplasty.

Clinical & experimental ophthalmology·2026
Same journal

Comparative Efficacy of Two Defocus Soft Contact Lenses on Axial Length and Choroid in High Myopic Adolescents: Comment.

Clinical & experimental ophthalmology·2026
Same journal

Lessons Learnt From 25 Years of Endophthalmitis: Causes, Microbiology and Visual Outcome Trends.

Clinical & experimental ophthalmology·2026
Same journal

Aqueous Humour Outflow Assessment Using Imaging-Based Techniques in Angle-Based Minimally Invasive Glaucoma Surgery (MIGS): A Systematic Review.

Clinical & experimental ophthalmology·2026
Same journal

Interpreting Hyperreflective Foci in Age-Related Macular Degeneration: A Critical Review of Cell Origins, Evolving Terminology and Clinical Utility.

Clinical & experimental ophthalmology·2026
See all related articles

The dynamic contour tonometer may offer accurate intraocular pressure (IOP) measurement, unaffected by corneal thickness. Further research is needed for patients with irregular corneas.

Area of Science:

  • Ophthalmology
  • Biomedical Engineering

Background:

  • Central corneal thickness variability impacts Goldmann applanation tonometry accuracy.
  • Intraocular pressure (IOP) measurement is crucial for glaucoma diagnosis and management.

Purpose of the Study:

  • To evaluate the dynamic contour tonometer (DCT) as a novel device for direct and non-invasive IOP measurement.
  • To assess the DCT's ability to provide true IOP readings irrespective of corneal thickness.

Main Methods:

  • The DCT utilizes a transducer-tipped probe that conforms to the corneal contour.
  • The device measures IOP when the probe's shape matches the cornea.
  • Ocular pulse amplitude (OPA) is also measured by the DCT.

Main Results:

Related Experiment Videos

  • The DCT aims to provide accurate IOP measurements independent of central corneal thickness.
  • The device measures ocular pulse amplitude, a parameter with debated significance in glaucoma.

    • Conclusions:

    • The dynamic contour tonometer shows promise for accurate IOP assessment.
    • Further studies are necessary to validate its effectiveness in patients with abnormal or irregular corneal contours.