Posters

Unique feature of best vitelliform macular dystrophy on optical coherence tomography angiography

Poster Details

First Author: M.Abrishami IRAN

Co Author(s):    A. Mirshahi   A. Masoumi                          

Abstract Details



Purpose:

To report three cases of best vitelliform macular dystrophy (BVMD) with an intriguing pattern of vascular flow on optical coherence tomography angiography (OCT-A).

Setting:

Eye Research centre, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran

Methods:

Adult human subjects who were diagnosed with BVMD were evaluated by OCT-A. All participants underwent complete ophthalmic examination, including best corrected visual acuity (BCVA), fluorescein angiography, spectral domain optical coherence tomography, electroretinography, and electrooculography testing. OCT-A was performed with a scanning area of 3×3 mm centreed on the fovea. Images were manually segmented to verify the accuracy of the automated segmentation algorithms.

Results:

Three patients with BVMD were evaluated. The first patient had macular lesions at the pseudohypopyon and vitelliruptive stages with BCVA values of 10/10 and 20/32, respectively. The second patient had a BCVA of 20/60 in the left eye and 20/25 in the right eye. Dilated fundoscopy revealed that the left eye had developed choroidal neovascularization. A macular lesion at the vitelliform stage was observed in the right eye. The last patient had pigmentary macular changes consistent with a diagnosis of BVMD. In both eyes, BCVA was 10/10. OCT-A revealed a bridging vessel in the foveal avascular zone in five eyes and a dense subretinal capillary network in one eye with choroidal neovascularization.

Conclusions:

The presence of a bridging vessel in the foveal avascular zone of patients with BVMD might have important clinical implications. Further studies are needed to evaluate the clinical utility of this finding.

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