GAT-DCT-Discordance Due to Corneal Properties

Glaucoma Clinical Trial

Official title:

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

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT01474070
• Other study ID #: GAT-DCT-Vergleich
• Status: Completed
• Phase: Phase 4
• First received: November 3, 2011
• Last updated: October 17, 2016
• Start date: November 2011
• Est. completion date: October 2016

Study information

• Verified date: October 2016
• Source: University of Zurich
• Contact: n/a
• Is FDA regulated: No
• Health authority: Switzerland: Swissmedic
• Study type: Observational

Clinical Trial Summary

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

Description:

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

• Trial with medical device

Recruitment information / eligibility

• Status: Completed
• Enrollment: 112
• Est. completion date: October 2016
• Est. primary completion date: September 2016
• Accepts healthy volunteers: No
• Gender: Both
• Age group: 18 Years and older

Eligibility

Inclusion criteria:

• clinical diagnosis of glaucoma

Exclusion criteria:

• other optic neuropathy other then glaucoma

• age<18

• corneal surgery

• use of contact lenses

Study Design

Observational Model: Cohort, Time Perspective: Prospective

Related Conditions & MeSH terms

• Glaucoma

Intervention

Device:
• Intraocular Pressure Measurement
Intraocular pressure is measured with GAT and with DCT

Locations

Country	Name	City	State
Switzerland	University Hospital Zurich, Ophthalmic Clinic	Zurich	ZH

Sponsors (1)

Lead Sponsor	Collaborator
University of Zurich

Country where clinical trial is conducted

Switzerland, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Intraocular pressure (IOP)	IOP is measured with goldman-applanation tonometer and dynamic-contour-tonometer at the only study visit (V0)	IOP is measured at the only study visit	No
Secondary	Demographical and clinical data	Age, axial length of the eye, central corneal thickness	study visit V0	No