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Clinical course of acute zonal occult outer retinopathy complicated by choroidal neovascularization

Introini, Ugo; Casalino, Giuseppe; Dhrami-Gavazi, Elona; Mukkamala, Sri K.; Mrejen, Sarah; Schubert, Hermann; Cohen, Salomon Y.; Azzolini, Claudio; Bandello, Francesco; Chang, Stanley; Yannuzzi, Lawrence A.

Purpose
To report the clinical course and multimodal imaging features of acute zonal occult outer retinopathy (AZOOR) complicated by choroidal neovascularization (CNV) treated with anti-vascular endothelial growth factor (VEGF) treatment or photodynamic therapy (PDT).

Methods
Observational case series. Retrospective analysis of patients presenting to different institutions with evidence of AZOOR and neovascular lesions. Diagnosis of AZOOR was made on the basis of clinical presentation and multimodal imaging. All patients underwent a comprehensive ophthalmic evaluation and multimodal retinal imaging, including color fundus photos, fundus autofluorescence, fundus fluorescein angiography and spectral-domain optical coherence tomography.

Results
Four patients (three males, mean age 53.5 years) were included in the study. Mean follow-up was 5.1 years. Presentation of AZOOR was unilateral in two patients and bilateral in the remainder two patients. One of the patients presenting with unilateral AZOOR developed zonal lesions in the fellow eye during follow-up. All patients presented with unilateral type 2 (subretinal) CNV. Three patients underwent intravitreal anti-VEGF injections and one patient underwent a single PDT. Multimodal retinal imaging showed zonal or multizonal progression during treatment. After treatment, visual acuity and CNV stabilization was observed in all patients.

Conclusions
The presence of CNV expands the clinical spectrum of AZOOR. CNV complicating AZOOR may be effectively treated with intravitreal injections of anti-VEGF, despite progression of the zonal lesions. Further studies are required to define the role of treatment in the progression of the zonal lesions.

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Also Published In

Title
International Journal of Retina and Vitreous
DOI
https://doi.org/10.1186/s40942-018-0134-y

More About This Work

Academic Units
Ophthalmology
Published Here
February 27, 2019

Notes

Acute zonal occult outer retinopathy, Choroidal neovascularization, Anti-vascular endothelial growth factor treatment, Multimodal retinal imaging