Glaucoma
Conditions
Keywords
Tonometry
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.
Detailed description
Introduction: Intraocular pressure (IOP) measurement is crucial in glaucoma diagnosis and treatment. We compared a non-contact air tonometer (Topcon CT-1®) with the gold standard Goldmann Applikation tonometer (GAT). Methods: In this prospective, mono centric device comparison study, only healthy eyes were enrolled. IOP was measured three times with the Topcon CT-1® followed by three times GAT. Mean IOP was calculated and compared with a paired t-test, a linear regression and a Bland-Altman analysis.
Interventions
Pressure tip or air puff is applied on eye
Sponsors
University of Zurich
Study design
Observational model
CASE_CONTROL
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to 99 Years
Healthy volunteers
Yes
Inclusion criteria
Healthy volunteers who agreed to be included in the study and were able to comply with the measurement procedures
Exclusion criteria
were cor-neal abnormalities (such as oedema, scars or dystrophies, astigmatism,hyperopia or myopia \> 3 dioptres), a history of ocular surgery or recent(\<47 weeks) ocular disorder.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Comparison of GAT with air tonometry Topcon CT1 | 7 months | Difference in mmHg between these two devices |
Countries
Switzerland
Outcome results
None listed