Non-Contact Air Tonometry (Topcon CT-1®) Versus Goldmann
1 other identifier
observational
58
1 country
1
Brief Summary
In this prospective device comparison study with 58 healthy eyes, the Topcon CT-1® showed statistically significant elevated intraocular pressure measurements compared to the gold standard Goldmann application tonometry.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for all trials
Started Apr 2017
Shorter than P25 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
April 1, 2017
CompletedPrimary Completion
Last participant's last visit for primary outcome
October 31, 2017
CompletedStudy Completion
Last participant's last visit for all outcomes
October 31, 2017
CompletedFirst Submitted
Initial submission to the registry
September 17, 2018
CompletedFirst Posted
Study publicly available on registry
September 25, 2018
CompletedSeptember 25, 2018
September 1, 2018
7 months
September 17, 2018
September 24, 2018
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Comparison of GAT with air tonometry Topcon CT1
Difference in mmHg between these two devices
7 months
Interventions
Pressure tip or air puff is applied on eye
Eligibility Criteria
healthy volunteers
You may qualify if:
- Healthy volunteers who agreed to be included in the study and were able to comply with the measurement procedures
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Augenpraxis Centerpassage
Wettingen, Canton of Aargau, 5430, Switzerland
Related Publications (4)
Gordon MO, Beiser JA, Brandt JD, Heuer DK, Higginbotham EJ, Johnson CA, Keltner JL, Miller JP, Parrish RK 2nd, Wilson MR, Kass MA. The Ocular Hypertension Treatment Study: baseline factors that predict the onset of primary open-angle glaucoma. Arch Ophthalmol. 2002 Jun;120(6):714-20; discussion 829-30. doi: 10.1001/archopht.120.6.714.
PMID: 12049575BACKGROUNDJorge J, Gonzalez-Meijome JM, Diaz-Rey JA, Almeida JB, Ribeiro P, Parafita MA. Clinical performance of non-contact tonometry by Reichert AT550 in glaucomatous patients. Ophthalmic Physiol Opt. 2003 Nov;23(6):503-6. doi: 10.1046/j.1475-1313.2003.00139.x.
PMID: 14622352BACKGROUNDLeske MC, Heijl A, Hussein M, Bengtsson B, Hyman L, Komaroff E; Early Manifest Glaucoma Trial Group. Factors for glaucoma progression and the effect of treatment: the early manifest glaucoma trial. Arch Ophthalmol. 2003 Jan;121(1):48-56. doi: 10.1001/archopht.121.1.48.
PMID: 12523884BACKGROUNDQuigley HA, Broman AT. The number of people with glaucoma worldwide in 2010 and 2020. Br J Ophthalmol. 2006 Mar;90(3):262-7. doi: 10.1136/bjo.2005.081224.
PMID: 16488940BACKGROUND
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY CHAIR
Pascal B Knecht, MD PD
University of Zurich
Study Design
- Study Type
- observational
- Observational Model
- CASE CONTROL
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
September 17, 2018
First Posted
September 25, 2018
Study Start
April 1, 2017
Primary Completion
October 31, 2017
Study Completion
October 31, 2017
Last Updated
September 25, 2018
Record last verified: 2018-09
Data Sharing
- IPD Sharing
- Will not share