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Fig. 4 | Journal of Medical Case Reports

Fig. 4

From: Effect of intravitreal dexamethasone on macular edema in von Hippel-Lindau disease assessed using swept-source optical coherence tomography: a case report

Fig. 4

a and b Structural optical coherence tomographic (OCT) scans before and 1 week after the injection of slow-release intravitreal dexamethasone implant. Although an initial improvement is observed after the injection of ranibizumab, cystic spaces in both the inner and outer nuclear layers persist (b). Cystoid edema involves the posterior pole entirely, extending outside the vascular arcades (a). Structural OCT B-scan performed 1 week after intravitreal dexamethasone implant administration that shows the absence of cystic spaces, a considerable decrease in central macular thickness, and a restoration of retinal profile and foveal pit (b′). A significant reduction in the extension of the cystoid edema is observed on the en face scan, on which cysts appear to be located in a small area in the upper part of the image above the superior vascular arcade (a′)

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