Foveal cyst: Unknown etiology and unexplained response to treatment.

The presence of a foveal cyst in a young male without any risk factors is peculiar, and the rapid response to intravitreal dexamethasone implant raises questions about the pathogenesis. The stellate pattern of hyporeflectivity on spectral domain optical coherence scan imaging with an intraretinal "filling defect"-like picture on fluorescein angiography suggests a possible ongoing ischemic pathology.