Clinical Evaluation of CATS Tonometer Prism

NCT ID: NCT02989909

Last Updated: 2018-08-08

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

86 participants

Study Classification

INTERVENTIONAL

Study Start Date

2017-01-31

Study Completion Date

2017-11-30

Brief Summary

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Prospective, open-labeled, randomized, controlled, multicenter study at two clinical investigative sites in Tucson, Arizona. The subjects will undergo intraocular pressure measurement with the CATS tonometer prism and the Goldmann applanation tonometer prism (GAT).

Of the 200 eyes, at least 10 highly astigmatic eyes (\>3 D of corneal astigmatism) each in the low, medium and high IOP ranges shall have the same clinical testing and analysis of results, with the analysis kept separate from that of the main group.

Detailed Description

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Conditions

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Ocular Hypertension

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

Study Groups

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Goldmann Tonometer

Goldmann Tonometer prism will be used as a based line comparator for tolerance assessment versus the active test comparator CATS tonometer prism

Group Type ACTIVE_COMPARATOR

Goldmann tonometer prism

Intervention Type DEVICE

demonstrate that not more than 5% of the paired differences between the reference tonometer (CATS prism) reading and the test tonometer (Goldmann prism) reading for each pressure range

CATS tonometer

CATS tonometer prism being used as the test product to assess IOP measurement versus active comparator the Goldmann Tonometer prism

Group Type EXPERIMENTAL

CATS tonometer prism

Intervention Type DEVICE

demonstrate that not more than 5% of the paired differences between the reference tonometer (CATS prism) reading and the test tonometer (Goldmann prism) reading for each pressure range

Interventions

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CATS tonometer prism

demonstrate that not more than 5% of the paired differences between the reference tonometer (CATS prism) reading and the test tonometer (Goldmann prism) reading for each pressure range

Intervention Type DEVICE

Goldmann tonometer prism

demonstrate that not more than 5% of the paired differences between the reference tonometer (CATS prism) reading and the test tonometer (Goldmann prism) reading for each pressure range

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Written informed consent (and assent when applicable)obtained from subject or subject's legal representative and ability for subject to comply with the requirements of the study.
* Male and female patients, at least 18 years of age

Exclusion Criteria

* Subject has undergone ocular surgery within the last 3 months
* Uncontrolled systemic disease that in the opinion of the Investigator would put the subject's heath at risk
* Pregnant or nursing women
* Subjects with only one functional eye
* Those with one eye having poor or eccentric fixation
* Eyes displaying an oval contact image
* Those with corneal scarring or who have had corneal surgery including corneal laser surgery
* Microphthalmos
* Buphthalmos
* Contact lens wearers
* Severe Dry eyes
* Lid squeezers - blepharospasm
* Nystagmus
* Keratoconus
* Any other corneal or conjunctival pathology or infection.
* Central corneal thickness greater than 0.600 mm or less than 0.500 mm (2 standard deviations about the human mean)
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Intuor Technologies, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Arizona Eye Consultants

Tucson, Arizona, United States

Site Status

Countries

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United States

References

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McCafferty SJ, Tetrault K, McColgin A, Chue W, Levine J, Muller M. Modified Goldmann prism intraocular pressure measurement accuracy and correlation to corneal biomechanical metrics: multicentre randomised clinical trial. Br J Ophthalmol. 2019 Dec;103(12):1840-1844. doi: 10.1136/bjophthalmol-2018-313470. Epub 2019 Feb 22.

Reference Type DERIVED
PMID: 30796054 (View on PubMed)

Other Identifiers

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CATS Tonometer, LLC - CP-01

Identifier Type: -

Identifier Source: org_study_id

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