Multimodal imaging findings in ‘hyper-early’ stage MEWDS

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Abstract

Objective

To describe a new stage of multiple evanescent white dot syndrome (MEWDS), occurring at a very early phase of the disease.

Methods

Retrospective analysis of clinical, angiographic and tomographic findings in four patients with ‘hyper-early’ stage MEWDS.

Results

In four patients seen within 1 week of the onset of symptoms, fundus analysis revealed macular granity and the classic yellow–white dots, some having no corresponding hyperautofluorescent pattern. Spectral-domain optical coherence tomography (SD-OCT) showed central foveal disruption of the ellipsoid zone (EZ) and interdigitation layer with a hyper-reflective dome-shaped lesion. In two patients, fluorescein angiography (FA) revealed an intermediate hypofluorescent perimacular halo, whereas late indocyanine green angiography (ICGA) showed a hyperfluorescent halo as well as the classic MEWDS features. After a few days, the EZ disruption appeared complete on OCT and fundus autofluorescence (FAF) in all patients. Visual acuity, OCT and FAF findings had fully recovered within 3 months.

Conclusions

We have shown a new feature of MEWDS on FAF, OCT, FA and ICGA, corresponding to a very early stage of the disease.

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