Spectralis OCT Repeatability and Reproducibility Study (S-2013-1)
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ClinicalTrials.gov Identifier: NCT02209077 |
Recruitment Status :
Completed
First Posted : August 5, 2014
Last Update Posted : August 5, 2014
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Glaucoma | Device: OCT performed to collect data from the back of the eye | Not Applicable |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 32 participants |
Allocation: | Randomized |
Intervention Model: | Single Group Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Diagnostic |
Official Title: | Repeatability and Reproducibility of Optic Nerve Head (ONH), Retinal Nerve Fiber Layer (RNFL), and Macula Parameters With the Heidelberg Spectralis OCT. |
Study Start Date : | June 2013 |
Actual Primary Completion Date : | July 2013 |
Actual Study Completion Date : | July 2013 |
Arm | Intervention/treatment |
---|---|
Experimental: Healthy Volunteers
OCT performed to collect data from the back of the eye
|
Device: OCT performed to collect data from the back of the eye
comparative retinal parameters with Spectralis OCT |
Experimental: Glaucoma group
OCT performed to collect data from the back of the eye
|
Device: OCT performed to collect data from the back of the eye
comparative retinal parameters with Spectralis OCT |
- Reproducibility and repeatability of multiple parameters (measured with OCT in the back of the eye) between different studies and different subject types [ Time Frame: one day ]This study is designed to determine optic nerve head structural values such as ONH rim thickness, RNFL thickness values, and macula structural values such as total retinal or ganglion cell layer thickness, as measured using the Spectralis device in a population of either subjects that are determined to be clinically "normal" or "glaucomatous". The expected reproducibility and repeatability are approximately 5% or less of the respective means (coefficients of variation, cov). This study shall result in a 95% confidence interval of the cov estimate not larger than ±1% when all data is pooled (normal and glaucoma cases). Statistical analysis of the measurement values will consist of the computation of mean and standard deviation in repeated examinations with the SPECTRALIS OCT in the normal and glaucomatous population.
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Ages Eligible for Study: | 18 Years to 90 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | Yes |
Inclusion Criteria:
- Subject is not an employee of the eye clinic.
- Age ≥18
- Able and willing to undergo the test procedures, give consent, and to follow instructions.
- For "normal subjects": Healthy eye without prior intraocular surgery (except cataract surgery and Lasik - laser-assisted refractive surgery) and without clinically significant vitreal, retinal or choroidal diseases, diabetic retinopathy, or disease of the optic nerve.
- For "glaucoma subjects": Early to advanced glaucoma according to existing medical charts.
- Refraction between +6 and -6 diopters and astigmatism ≤ 2 diopters.
- When both eyes are eligible, one randomly selected eye will enter the study.
Exclusion Criteria:
• Insufficient quality of Spectralis OCT images (this is not determined until after Spectralis OCT examination, and is an unusual circumstance). Minimum requirements are:
- Retina completely included in image frame,
- Quality Score ≥ 20 in the stored ART mean images
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02209077
Canada, Nova Scotia | |
Department of Ophthalmology and Visual Sciences, Dalhousie University | |
Halifax, Nova Scotia, Canada, B3H 2Y9 |
Principal Investigator: | Balwantray C Chauhan, PhD | Department of Ophthalmology and Visual Sciences, Dalhousie University, Halifax, Canada |
Responsible Party: | Heidelberg Engineering GmbH |
ClinicalTrials.gov Identifier: | NCT02209077 |
Other Study ID Numbers: |
S-2013-1 Study (REPRO) |
First Posted: | August 5, 2014 Key Record Dates |
Last Update Posted: | August 5, 2014 |
Last Verified: | August 2014 |
Glaucoma Ocular Hypertension Eye Diseases |