- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04112472
Clinical Trial ES 900 - 2019
Clinical Trial - ES 900 - 2019
The primary objective of this clinical trial is to assess the clinical performance of the investigational device. To that end, the Limits of Agreement with respect to comparator devices are analyzed. The Limits of Agreement allow estimating the expected measurement deviation per measurand, which is compared to the "maximum acceptable measurement error", as defined by the Risk Analysis of the investigational device, to assess the risk involved in measurements of the investigational device. Furthermore, the in-vivo repeatability will be quantified for each measurand, as well as the confidence intervals for mean deviation with respect to the current gold standard device.
As a secondary objective of the study, raw measurement data will be collected to allow for improvement of existing algorithms, development of additional measurands and for retrospective analysis.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
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Basel, Switzerland, 4056
- University Hopital Basel
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
At least one eye of each subject needs to fulfill one of the following inclusion criteria:
- volunteers with normal phakic eye;
- patients seeking cataract surgery;
- patients with pseudophakic eye;
- patients with oil-filled eye;
- patients with aphakic eye.
Exclusion Criteria:
Exclusion criteria per subject:
- underage patients (younger than 18 years);
- vulnerable patients;
- inability to give informed consent;
Exclusion criteria per eye:
- inability to maintain stable fixation;
- corneal lesions or scarring;
- previous corneal surgery (except: pseudophakic eyes, oil-filled eyes, aphakic eyes);
- previous intraocular surgery (except: pseudophakic eyes, oil-filled eyes, aphakic eyes);
- active inflammation of the eye;
- active infection of the eye;
- tear film break up time of less than 5 sec.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Diagnostic
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Examination of participants
Examination of participants by means of the investigational device as well as the comparative devices.
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EYESTAR 900 is an optical biometry device used to create a geometrical representation of the eye by means of optical interferometry.
The intervention are optical, non-contact examinations with the investigational device EYESTAR 900 and comparative device(s).
Results of the examinations serve to compare the performance data of the investigational device with those of the comparative devices.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Keratometry Measurand: Kmean (Spherical refractive power of central cornea) in keratometric diopters [dpt]
Time Frame: Through study completion, approximately 7 months.
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In-vivo repeatability, limits of agreement and confidence interval of difference between investigational and comparator device for Kmean.
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Through study completion, approximately 7 months.
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Keratometry Measurand: AST (Anterior central corneal astigmatism) in [dpt]
Time Frame: Through study completion, approximately 7 months.
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In-vivo repeatability, limits of agreement and confidence interval of difference between investigational and comparator device for AST.
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Through study completion, approximately 7 months.
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Keratometry Measurand: Axis (Anterior steep meridian angle) in [°]
Time Frame: Through study completion, approximately 7 months.
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In-vivo repeatability, limits of agreement and confidence interval of difference between investigational and comparator device for Axis. Axis is the angle of the anterior central corneal astigmatism. The value of Axis is measured in [°], whereas the differences shall be expressed in [dpt]. |
Through study completion, approximately 7 months.
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Axial Measurand: AL (Axial length) in [mm]
Time Frame: Through study completion, approximately 7 months.
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In-vivo repeatability, limits of agreement and confidence interval of difference between investigational and comparator device for AL.
AL is measured from the corneal tear film to the inner limiting membrane.
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Through study completion, approximately 7 months.
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Axial Measurand: CCT (Corneal thickness) in [μm]
Time Frame: Through study completion, approximately 7 months.
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In-vivo repeatability, limits of agreement and confidence interval of difference between investigational and comparator device for CCT.
CCT is measured from the corneal tear film to the corneal endothelium.
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Through study completion, approximately 7 months.
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Axial Measurand: ACD (Anterior chamber depth) in [mm]
Time Frame: Through study completion, approximately 7 months.
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In-vivo repeatability, limits of agreement and confidence interval of difference between investigational and comparator device for ACD.
ACD is measured from the corneal tear film to the anterior surface of the lens.
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Through study completion, approximately 7 months.
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Axial Measurand: LT (Lens thickness) in [mm]
Time Frame: Through study completion, approximately 7 months.
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In-vivo repeatability, limits of agreement and confidence interval of difference between investigational and comparator device for LT.
LT is measured from the anterior to the posterior surface of the lens.
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Through study completion, approximately 7 months.
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Imaging Measurand: WTW (White-to-White) in [mm]
Time Frame: Through study completion, approximately 7 months.
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In-vivo repeatability, limits of agreement and confidence interval of difference between investigational and comparator devices for WTW.
WTW distance is the horizontal diameter of a best fit circle to the iris border.
|
Through study completion, approximately 7 months.
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Imaging Measurand: ICX / ICY (Iris barycenter in horizontal direction / in vertical direction) in [mm]
Time Frame: Through study completion, approximately 7 months.
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In-vivo repeatability of investigational and comparator device for Iris barycenter.
The iris barycenter is the displacement of the iris center relative to the vertex in X (horizontal direction) and Y (vertical direction) coordinates.
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Through study completion, approximately 7 months.
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Imaging Measurand: PD (Pupil diameter) in [mm]
Time Frame: Through study completion, approximately 7 months.
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In-vivo repeatability of investigational and comparator device for PD.
PD is measured at the diameter of a best fit circle to the pupil border.
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Through study completion, approximately 7 months.
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Imaging Measurand: PCX / PCY (Pupil barycenter in horizontal direction / in vertical direction) in [mm]
Time Frame: Through study completion, approximately 7 months.
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In-vivo repeatability of investigational and comparator device for Iris barycenter.
The pupil barycenter is the displacement of the iris center relative to the vertex in X (horizontal direction) and Y (vertical direction) coordinates.
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Through study completion, approximately 7 months.
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Anterior corneal topography: Elevation (Anterior torical elevation) in [µm] (2D-map)
Time Frame: Through study completion, approximately 7 months.
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In-vivo repeatability and confidence interval of mean deviation with respect to comparator device, for elevation in [µ]; axial curvature in [dpt].
|
Through study completion, approximately 7 months.
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Anterior corneal topography: Axial curvature (Anterior tangential curvature) in [dpt] (2D-map)
Time Frame: Through study completion, approximately 7 months.
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In-vivo repeatability and confidence interval of difference between investigational and comparator devices for Anterior torical elevation.
The measuring performance over the 2D-map is subdivided in three zones (central zone, middle zone, peripheral zone).
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Through study completion, approximately 7 months.
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Posterior corneal topography: Elevation (Posterior torical elevation) in [µm] (2D-map)
Time Frame: Through study completion, approximately 7 months.
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In-vivo repeatability of investigational and comparator device for Posterior torical elevation.
The measuring performance over the 2D-map is subdivided in three zones (central zone, middle zone, peripheral zone).
|
Through study completion, approximately 7 months.
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Posterior corneal topography: Axial curvature (Posterior tangential curvature) in [dpt] (2D-map)
Time Frame: Through study completion, approximately 7 months.
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In-vivo repeatability and confidence interval of differences of investigational and comparator devices for Posterior tangential curvature.
The measuring performance over the 2D-map is subdivided in three zones (central zone, middle zone, peripheral zone).
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Through study completion, approximately 7 months.
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Corneal pachymetry: Corneal thickness map in [µm]
Time Frame: Through study completion, approximately 7 months.
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In-vivo repeatability and confidence interval of differences of investigational and comparator device for Corneal thickness map.
The measuring performance over the 2D-map is subdivided in three zones (central zone, middle zone, peripheral zone).
|
Through study completion, approximately 7 months.
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Simulated Keratometry: SimKmean (Mean simulated keratometry) in [dpt]
Time Frame: Through study completion, approximately 7 months.
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In-vivo repeatability, limits of agreement and confidence interval of difference between investigational and comparator devices for SimKmean.
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Through study completion, approximately 7 months.
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Simulated Keratometry: SimAST (Simulated astigmatism) in [dpt]
Time Frame: Through study completion, approximately 7 months.
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In-vivo repeatability, limits of agreement and confidence interval of difference between investigational and comparator devices for SimAST.
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Through study completion, approximately 7 months.
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Simulated Keratometry: SimAxis (Simulated keratometry anterior steep meridian angle) in [°]
Time Frame: Through study completion, approximately 7 months.
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In-vivo repeatability, limits of agreement and confidence interval of difference between investigational and comparator device for SimAxis.
The value of Axis is measured in [°], whereas the differences shall be expressed in [dpt].
SimAxis is the angle of the larger simulated keratometry radius with respect to the horizontal axis X.
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Through study completion, approximately 7 months.
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Simulated Keratometry: Anterior corneal shape factor (E): Dimensionless quantity
Time Frame: Through study completion, approximately 7 months.
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In-vivo repeatability, limits of agreement and confidence interval of difference between investigational and comparator device for Anterior corneal shape factor (E), that characterizes the anterior corneal asphericity.
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Through study completion, approximately 7 months.
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Simulated Posterior Keratometry: SimPKmean (Mean simulated posterior keratometry) in [dpt]
Time Frame: Through study completion, approximately 7 months.
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In-vivo repeatability, limits of agreement and confidence interval of difference between investigational and comparator device for SimPKmean.
SimPKmean is the corresponding refractive power in diopters.
|
Through study completion, approximately 7 months.
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Simulated Posterior Keratometry: SimPAST (Simulated keratometry posterior corneal astigmatism) in [dpt]
Time Frame: Through study completion, approximately 7 months.
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In-vivo repeatability, limits of agreement and confidence interval of difference between investigational and comparator device for SimPAST.
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Through study completion, approximately 7 months.
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Simulated Posterior Keratometry: SimPAxis (Simulated keratometry posterior steep meridian angle) in [°]
Time Frame: Through study completion, approximately 7 months.
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In-vivo repeatability, limits of agreement and confidence interval of difference between investigational and comparator device for SimPAxis.
SimPAxis represents the angle of the larger simulated keratometry radius of curvature with respect to the horizontal axis X.
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Through study completion, approximately 7 months.
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Simulated Posterior Keratometry: Posterior corneal shape factor (PE): Dimensionless quantity
Time Frame: Through study completion, approximately 7 months.
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In-vivo repeatability, limits of agreement and confidence interval of difference between investigational and comparator device for Posterior corneal shape factor (PE), that characterizes the posterior corneal asphericity.
|
Through study completion, approximately 7 months.
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Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Acquisition of volumetric OCT Data of the eye.
Time Frame: Through study completion, approximately 7 months
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The data is collected to allow for: Improvement of existing algorithms, development of additional measurands and for retrospective analysis.
The data will not be processed within the scope of this clinical trial.
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Through study completion, approximately 7 months
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Acquisition of photographic images of the eye.
Time Frame: Through study completion, approximately 7 months
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The data is collected to allow for: Improvement of existing algorithms, development of additional measurands and for retrospective analysis.
The data will not be processed within the scope of this clinical trial.
|
Through study completion, approximately 7 months
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Collaborators and Investigators
Sponsor
Collaborators
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Other Study ID Numbers
- 1023551
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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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