The use of optical coherence tomography angiography in pachychoroid spectrum diseases: a concurrent comparison with dye angiography

Session Details

Session Title: Free Paper Session 21: Imaging III

Session Date/Time: Sunday 10/09/2017 | 08:00-09:30

Paper Time: 09:06

Venue: Room 113

First Author: : F.Sermet TURKEY

Co Author(s): :    S. Demirel   O. Yanik   E. Ozmert                       

Abstract Details

Purpose:

To compare the clinical and morphological findings of pachychoroid neovasculopathy and to interpret its specific features in patients who presented pachychoroid features and flat irregular pigment epithelial detachment.

Setting:

Ankara University Faculty of Medicine Department of Ophthalmology

Methods:

Nineteen eyes of 17 patients presenting with flat PED and pachychoroid features with no features of age-related macular degeneration (AMD) or any other degenerative changes were analysed. Fundus fluorescein angiography (FFA) and/or an indocyanine green angiography (ICGA) and optical coherence tomography angiography (OCT) were performed at the same visit. Subfoveal choroidal thickness was measured on EDI mode of the SD-OCT.

Results:

Mean age was 59.1 years. Mean subfoveal choroidal thickness was 388μm. ICGA revealed existence of choroidal vascular plaque in 8 (44.4%), a conspicious plaque in 5 (27.8%) of the eyes, and it showed non-neovascular features such as hyperpermeability or dilated choroidal vessels in 5 (27.8%) of the eyes. OCT-A depicted presence of choroidal neovascularisation in 13 (72%) of the eyes and polypoidal structures in 1(5.3%) of the eyes. For all of the eyes which ICGA was positive for presence of choroidal neovascularization (CNV), OCT-A also showed CNV. OCT-A was also able to detect CNV in all of the eyes with conspicuous plaque, and in one eye with no neovascularisation on ICGA.

Conclusions:

: In cases with pachychoroid spectrum diseases, OCT-A findings seems to be more sensitive for precise detecting type 1 choroidal neovascularization as compared to conventional dye angiography

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