- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01159340
Icare Versus Haag-Streit Applanation Tonometer
July 8, 2010 updated by: Icare Finland Oy
Design Compliance Testing of the Icare One Rebound Tonometer According to the American National Standard ANSI Z80.10-2001 and International Standard ISO 8612.2 for Tonometers
The clinical performance of Icare ONE Tonometer TA02 was compared to a Goldmann type applanation tonometer (Haag-Streit).
Data was collected according to ANSI Z80.10-2003 (ISO 8612.2) standard.
Subjects were eligible for the study if they had no exclusion criteria specified in the ANSI/ISO standard.
One eye from 260 subjects was selected for the study.
The minimum sample size according to the standard is 150.
One eye of each subject was selected for the study by an investigator, based on the history of the patient, results of an external examination of the eye with slit lamp, keratometry readings, and prior knowledge of the intraocular pressure (IOP) range.
The Icare ONE Tonometer TA02 in comparison to the reference tonometer (Goldmann type tonometer).
Study Overview
Status
Completed
Conditions
Study Type
Observational
Enrollment (Actual)
260
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
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Helsinki, Finland, 00029
- Glaucoma Service, Department of Opthalmology, Helsinki University Central Hospital
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Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years and older (Adult, Older Adult)
Accepts Healthy Volunteers
Yes
Genders Eligible for Study
All
Sampling Method
Non-Probability Sample
Study Population
Subjects were eligible for the study if they had no exclusion criteria specified in the ANSI/ISO standard.
One eye from 260 subjects was selected for the study.
The minimum sample size according to the ANSI standard is 150.
In order to aid enrollment of at least 40 eyes in each pressure range (7-16 mmHg, >16 to <23 mmHg and 23 mmHg or higher), subjects were invited to participate on the basis of prior knowledge of their IOP range.
One eye of each subject was selected for the study by an investigator, based on the history of the patient, results of an external examination of the eye with slit lamp, keratometry readings, and prior knowledge of the IOP range.
Description
Inclusion Criteria:
- subjects were eligible for the study if they had no exclusion criteria as specified by the ANSI/ISO standard
Subjects were selected according to the following exclusion criteria (as given in ANSI Z80.10-2003 and ISO 8612):
- subjects with only one functional eye
- those with one eye having poor or eccentric fixation
- high corneal astigmatism (i.e. those eyes displaying an oval contact image with the Goldmann tonometer)
- those with corneal scarring or who have had corneal surgery, including corneal laser surgery
- microphthalmos
- buphthalmos
- contact lens wearers
- dry eyes
- lid squeezers (blepharospasm)
- nystagmus
- keratoconus
- any other corneal or conjunctival pathology or infection
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Investigators
- Principal Investigator: Päivi Puska, MD, FEBO, Helsinki University Central Hospital
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start
May 1, 2009
Study Completion (Actual)
November 1, 2009
Study Registration Dates
First Submitted
June 30, 2010
First Submitted That Met QC Criteria
July 8, 2010
First Posted (Estimate)
July 9, 2010
Study Record Updates
Last Update Posted (Estimate)
July 9, 2010
Last Update Submitted That Met QC Criteria
July 8, 2010
Last Verified
July 1, 2010
More Information
Terms related to this study
Other Study ID Numbers
- Icare-0021
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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