Simultaneous OCT and B-FAF in Eyes With Alteration of the Foveal Contour

NCT ID: NCT03287648

Last Updated: 2021-01-20

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

UNKNOWN

Total Enrollment

20 participants

Study Classification

OBSERVATIONAL

Study Start Date

2017-06-01

Study Completion Date

2024-05-20

Brief Summary

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Some alterations of the foveal contour do not meet the criteria established for the definition of lamellar macular hole on the basis of optical coherence tomography (OCT). However, these alterations may show an appearance, on blue fundus autofluorescence (B-FAF) imaging, reminiscent of lamellar macular hole.

The aim of the study is to evaluate in detail these alterations recording simultaneously OCT and B-FAF.

Detailed Description

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All images will be collected using the Heidelberg Spectralis system (Heidelberg Engineering, Heidelberg, Germany) according to the prespecified imaging protocols. Blue-fundus autofluorescence (excitation wavelength at 488 nm and barrier filter at 500 nm) images and SD-OCT images will be obtained after pupil dilation.

The OCT recording protocol will consist of a sequence of 37 horizontal sections, spaced 120-µm apart, covering an area of 20° or 30° horizontally by 15° vertically, and a sequence of 24 radial sections recorded in the high-resolution (HR) mode simultaneously with infrared (IR) images.

In addition, simultaneous B-FAF/OCT images will be acquired (horizontal, and vertical OCT sections, centered on the fovea and recorded in the HR mode).

The same OCT/FAF protocol will be used for the study eye and for the fellow eye.

For the study eyes that had been examined in the past, the ''Follow-up'' function will be used in addition to the prespecified protocol to evaluate if any changes had occurred since the last scan.

Multiple other morphological characteristics will be analyzed using OCT imaging, including the status of the posterior cortex, the presence of operculum, the integrity/disruption of the external limiting membrane (ELM), ellipsoid zone (EZ), and the central and minimal foveal thickness (CFT and mFT respectively). The latter will be defined as the thinnest part of the fovea within the foveal pit identified by examining radial scans whereas the former will be measured in relation to the highest point of the foveal bulge.

All measurements will be performed using the Spectralis built-in manual caliper function at high magnification after adjusting the scale to 1:1 µm except for CFT, which will be calculated using the automated ''thickness map'' function of the Heidelberg Eye Explorer.

Conditions

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Lamellar Macular Hole Lamellar Macular Pseudohole

Study Design

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Observational Model Type

COHORT

Study Time Perspective

CROSS_SECTIONAL

Interventions

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optical coherence tomography and blue-fundus autofluorescence

Simultaneous infra-red and optical coherence tomography (cube and radial pattern) centered on the fovea Simultaneous fundus autofluorescence and optical coherence tomography (radial pattern) centered on the fovea

Intervention Type DIAGNOSTIC_TEST

Other Intervention Names

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infra-red, color pictures

Eligibility Criteria

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Inclusion Criteria

* alteration of the foveal contour not classifiable as lamellar or pseudo macular hole
* focal, well-defined increased autofluorescence signal at the fovea

Exclusion Criteria

* intraretinal cysts not associated with break of the inner retina
* juxtafoveal telangiectasia
* ring of increased B-FAF
* vitelliform and pseudovitelliform lesions
* history of diabetes, retinal vein occlusion, uveitis, CSR, AMD or any other retinal -disease potentially associated with intra or subretinal fluid
* macular drusen
* history of submacular hemorrhage
Minimum Eligible Age

20 Years

Maximum Eligible Age

90 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University of Milan

OTHER

Sponsor Role collaborator

University of Molise

OTHER

Sponsor Role lead

Responsible Party

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Roberto dell'Omo

Associate Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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University of Molise

Campobasso, , Italy

Site Status RECRUITING

Countries

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Italy

Central Contacts

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Roberto dell'Omo, Prof

Role: CONTACT

00393317120416

Ciro Costagliola, Prof

Role: CONTACT

00393683589790

Facility Contacts

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Roberto dell'Omo, Prof

Role: primary

00393317120416

Ciro Costagliola, Prof

Role: backup

00393683589790

Other Identifiers

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0004/2017

Identifier Type: -

Identifier Source: org_study_id

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