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Non-Contact Air Tonometry (Topcon CT-1®) Versus Goldmann

University of Zurich (UZH) logo

University of Zurich (UZH)

Status

Completed

Conditions

Glaucoma

Treatments

Device: Intraocular pressure measurement

Study type

Observational

Funder types

Other

Identifiers

NCT03684174
2018-00136

Details and patient eligibility

About

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.

Full 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.

Enrollment

58 patients

Sex

All

Ages

18 to 99 years old

Volunteers

Accepts Healthy Volunteers

Inclusion and exclusion criteria

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.

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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