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Completed

NCT Number: NCT01474070

GAT-DCT-Discordance Due to Corneal Properties

IOP is measured with two devices (Dynamic Contour Tonometry (DCT) and Goldmann applanation tonometry (GAT)).

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Key information

Conditions

Glaucoma Eye Diseases Ocular Hypertension

Age range

18 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

University Hospital Zurich, Ophthalmic Clinic

Zurich, Canton of Zurich, 8091, Switzerland

About this study

DCT reading will be compared to a corrected GAT reading by the formula of Elsheikh, Alhasso and Pye.

  • Trial with medical device

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • clinical diagnosis of glaucoma

Exclusion criteria

  • other optic neuropathy other then glaucoma
  • age<18
  • corneal surgery
  • use of contact lenses

Treatment and study plan

Intraocular pressure measurement

Device

Intraocular pressure is measured with GAT and with DCT

Other names: Goldmann Applanation Tonometry (GAT), Dynamic Contour Tonometry (DCT)

Primary outcomes

  1. Intraocular pressure (IOP)

    Time frame: IOP is measured at the only study visit

    IOP is measured with goldman-applanation tonometer and dynamic-contour-tonometer at the only study visit (V0)

Secondary outcomes

  1. Demographical and clinical data

    Time frame: study visit V0

    Age, axial length of the eye, central corneal thickness

Sponsors and collaborators

Lead sponsor

University of Zurich

Other

Registry information

Official study title

Influence of Discordant Intraocular Eye Pressure Readings Taken by Dynamic Contour Tonometry and Goldmann Applanation Tonometry

Important dates

Study start
2011
Primary completion
2016
Study completion
2016
First posted
Nov 17, 2011
Registry last updated
Oct 18, 2016

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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