Reproducibility of RNFL and ONH Measurements in OAG With Heidelberg Spectralis SD-OCT Glaucoma Module Premium Edition

NCT ID: NCT02247284

Last Updated: 2020-03-25

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

50 participants

Study Classification

INTERVENTIONAL

Study Start Date

2015-03-01

Study Completion Date

2019-12-31

Brief Summary

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The purpose of this study is to assess and compare the repeatability of SD-OCT (Spectralis™ OCT, Version 6.0, Heidelberg Engineering, Germany) RNFL thickness measurements with a new software (glaucoma premium module) with the well established peripapillary RNFL thickness measurements in patients with primary open angle glaucoma.

Detailed Description

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The purpose of this study is to assess and compare the repeatability of SD-OCT (Spectralis™ OCT, Version 6.0, Heidelberg Engineering, Germany) RNFL thickness measurements with the new software (method B) and with the previous method of measurement (method A) in patients with glaucoma.

It is a prospective, not blinded, not randomised, monocentric study. Inclusion of 50 patients with a diagnosis of primary open angle glaucoma (POAG), that will be recruited from the ophthalmology outpatient department of the UniversityHospital Zurich, Switzerland. All patients will undergo a full ophthalmic examination including measurement of refraction, best corrected visual acuity, examination of anterior and posterior compartment and measurement of the intraocular pressure. On the same day they will have 3 OCT examinations with a new method of measurement (method B).On the same day the first 10 patients will undergo also 3 OCT examinations with the previous method (method A) and they will get an other 3 OCT examinations with method B by a second observer. For this 10 patients the next consultation (3 months +/- 1 month) the 3 OCT examinations with method B will be repeated by the first observer.

Primary objectives are coefficient of variations (COV) of method A and B; Intra-class-correlations (ICC) of method A and B.

Conditions

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Primary Open Angle Glaucoma

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

Study Groups

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group 1

patient with a diagnosis of primary open angle glaucoma will undergo 'RNFL and BMO-MRW SD-OCT' measurements with Heidelberg Spectralis SD-OCT old protocoll and Glaucoma Premium Module (new) protocoll, which in addition to RNFL measurements include measurement of Bruch's Membrane Opening-based minimum rim width (BMO-MRW).

Group Type EXPERIMENTAL

RNFL and BMO-MRW SD-OCT

Intervention Type DEVICE

Masurement of peripapillary RNFL measurements with Heidelberg Spectralis SD-OCT (Heidelberg Engeneering GmbH, Heidelberg, Germany) old protocoll and in addition with the new Glaucoma Premium Module (software version 6.0) tocoll, which in addition to RNFL measurements include measurement of Bruch's Membrane Opening-based minimum rim width (BMO-MRW).

Interventions

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RNFL and BMO-MRW SD-OCT

Masurement of peripapillary RNFL measurements with Heidelberg Spectralis SD-OCT (Heidelberg Engeneering GmbH, Heidelberg, Germany) old protocoll and in addition with the new Glaucoma Premium Module (software version 6.0) tocoll, which in addition to RNFL measurements include measurement of Bruch's Membrane Opening-based minimum rim width (BMO-MRW).

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* diagnosis of POAG glaucoma
* male and female patients aged 18 years or older, no upper limit
* written informed consent
* visual acuity of more or equal to 0.5 Snellen
* refractive error between + /- 6.00 D spheric and under or equal than 2.00 D cylindrical

Exclusion Criteria

* history of surgery other than uncomplicated cataract surgery
* disease affecting cornea, anterior compartment, lens, vitreous body
* history of severe ocular disease, particularly diseases affecting the optic nerve, other than glaucoma
* history of ocular trauma
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University of Zurich

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Jens Funk, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

UniversityHospital Zurich, Zurich, Switzerland

Locations

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UniversityHospital Zurich

Zurich, Canton of Zurich, Switzerland

Site Status

Countries

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Switzerland

Other Identifiers

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Glaucoma-Premium-OCT

Identifier Type: -

Identifier Source: org_study_id

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