Posters

Choroidal thickness in birdshot chorioretinopathy over a 2-year period

Poster Details

First Author: R.Forte FRANCE

Co Author(s):    F. Aptel   K. Thia-Soui-Tchong   L. Salmon   A. Mailhac   L. Bouillet   C. Chiquet              

Abstract Details



Purpose:

To evaluate 2-year changes in choroidal features in eyes with birdshot chorioretinopathy (BSCR).

Setting:

Consecutive patients in university hospital ophthalmology service

Methods:

Thirteen patients (26 eyes) with BSCR were prospectively evaluated during a 2-year period with standard automated perimetry (SAP), fluorescein angiography (FA), indocyanine green angiography (ICGA) and optical coherence tomography (OCT) (Heidelberg Spectralis HRA + OCT). Enhanced-depth imaging optical coherence tomography (EDI-OCT) was performed to evaluate choroidal thickness and presence of suprachoroidal fluid.

Results:

Eight patients (61%) were females; the patients mean age was 60±4.7 (range, 49–66) years. In all cases at the 2-year visit a significant reduction of choroidal thickness was present only at the fovea (p=0.01). The rate of foveal choroidal thinning was 1.8±1.6 µm per month. The amount of thinning was associated with the presence of suprachoroidal fluid (SCF) at baseline (p=0.005). SCF at the 2-year visit was more frequent compared to baseline (p=0.002), was associated with a greater mean defect of SAP at baseline (p=0.04), while no association was found with BCVA, retinal vasculitis and extension of ICGA lesions.

Conclusions:

Choroidal thinning at 2-year follow-up can be observed in BSCR at the fovea. The frequency of SCF presence increased even in absence of significant retinal inflammation or visual loss.

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