Multi-modality imaging on multiple evanescent white dot syndrome-A Spectralis Study
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    Abstract:

    AIM: To present retinal microstructure, metabolism and function abnormalities in the course of multiple evanescent white dot syndrome (MEWDS) by Heidelberg spectralis modality imaging platform and observe its outcome by EDI-SD-OCT and two wavelength autofluorescence.METHODS: A case of multiple evanescent white dot syndrome in a 23-year-old female presented initially with a 15-day history of floaters and a central scotoma in the right eye. To establish the diagnosis, multimodality imaging was performed, namely, blue light-fundus autofluorescence (BL-FAF, excitation 488nm, emission >500nm), near-infrared fundus autofluorescence (NIR-FAF, excitation 787nm, emission >800nm) using a confocal scanning laser ophthalmoscope, fundus fluorescein angiography (FFA), indocyanine green angiography (ICGA), spectrum-domain enhance depth imaging optical coherence tomography (SD-EDI-OCT), multifocal electroretinography (mf-ERG) and fundus photogragh were performed and followed up at the eighth month after initially visiting.RESULTS: Optical coherence tomography(OCT) showed a transient disruption of the foveal photoreceptor outer segments in correspondence to foveal granularity. NIR-FAF showed hypoautofluorescent areas, ≤40μm in size, mostly concentrated around the posterior pole and its temporal side less than that in BL-FAF. Mf-ERG show pinnacle disappeared in fovea and macula and responses decreased markedly compared with the follow eye. At the eighth month follow up, hyperfluorescence in BL-FAF were disappear, while, NIR-FAF Hypofluorescent spots in early stage of such lesion were reduced. But OCT demonstrated the structure was recovered in residual Hypofluorescent area in NIR-FAF. The subfoveal choroidal thickness was decreased from 372μm to 307μm slightly and cost line was recovered.CONCLUSION: MEWDS is a benign self-healing disease and there is no pathological evidence to investigate the natural course of such disease. SD-OCT allows highly detailed images approaching histopathology to certify the microstructural changes. Two-wave length FAF and mf-ERG provide more information about metabolism in outer retina especial RPE and photoreceptor. Spectralis OCT combined with two-wavelength FAF and mf-ERG provide a new way to analyze this disease and offer more details for therapy and follow-up.

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Rui Hua, Kang Chen, Li-Min Liu, et al. Multi-modality imaging on multiple evanescent white dot syndrome-A Spectralis Study. Int J Ophthalmol, 2012,5(5):644-647

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Publication History
  • Received:November 28,2011
  • Revised:September 18,2012
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