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

Ocuton-S self tonometry vs. Goldmann tonometry; a diurnal comparison study.

P Kóthy1, P Vargha, G Holló

  • 11st Department of Ophthalmology, Biometry Unit, Semmelweis University, Budapest, Hungary. kotpet@szeml.sote.hu

Acta Ophthalmologica Scandinavica
|June 13, 2001
PubMed
Summary

Intraocular pressure (IOP) measurements differ significantly over a 24-hour period between Goldmann tonometry and Ocuton-S self-tonometry. Ocuton-S may underestimate early morning IOP, requiring careful evaluation in glaucoma patients.

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

Andrological characteristics of young beef bulls of different breeds in Hungary.

Acta veterinaria Hungarica·2026
Same author

Prevalence of physiological and pathological electrocardiographic findings in Hungarian athletes.

Acta physiologica Hungarica·2015
Same author

Diagnostic accuracy of nerve fibre layer, macular thickness and optic disc measurements made with the RTVue-100 optical coherence tomograph to detect glaucoma.

Eye (London, England)·2010
Same author

Health anxiety in a non-population-based, pre-publicised glaucoma screening exercise.

Eye (London, England)·2009
Same author

A combined artificial chromosome-stem cell therapy method in a model experiment aimed at the treatment of Krabbe's disease in the Twitcher mouse.

Cellular and molecular life sciences : CMLS·2008
Same author

Long-term progression at individual mean intraocular pressure levels in primary open-angle and exfoliative glaucoma.

European journal of ophthalmology·2008

Area of Science:

  • Ophthalmology
  • Glaucoma Research
  • Ocular Diagnostics

Background:

  • Intraocular pressure (IOP) monitoring is crucial for managing glaucoma.
  • Diurnal IOP variations can impact treatment efficacy.
  • Accurate IOP measurement techniques are essential for clinical decision-making.

Purpose of the Study:

  • To compare 24-hour diurnal intraocular pressure (IOP) measurements.
  • Evaluate differences between the Ocuton-S applanation self-tonometer and the Goldmann tonometer.
  • Assess the impact of diurnal corneal thickness changes on IOP readings.

Main Methods:

  • 24-hour diurnal IOP curves were recorded in 14 eyes of 7 glaucoma patients.
  • Measurements were taken every three hours using both Goldmann tonometry and Ocuton-S self-tonometry.

Related Experiment Videos

  • Ultrasound corneal pachymetry was performed at the same intervals to assess central corneal thickness (CCT).

    • Main Results:

    • Overall mean IOP did not differ significantly between the two methods (p = 0.74).
    • However, statistically significant diurnal differences in IOP readings were observed (p = 0.00006).
    • Goldmann tonometry showed lower readings during the day and higher readings at night compared to Ocuton-S, with significant interaction (p = 0.0007). CCT also showed significant diurnal changes (p = 0.000001).

    Conclusions:

    • Diurnal IOP curves differ significantly between Goldmann tonometry and Ocuton-S self-tonometry.
    • Diurnal changes in corneal thickness may influence IOP measurements differently for each device.
    • Ocuton-S self-tonometry may underestimate early morning IOP, necessitating cautious interpretation for nocturnal and early morning IOP elevation assessment.