Lee SY, et al. - Theis trial entailed the elucidation of the initial and serial multimodal imaging findings in acute macular neuroretinopathy (AMN), with emphasis on the choroidal vascular changes. The results demonstrated areas of inner choroidal vascular flow void on optical coherence tomography angiography (OCTA), in patients with AMN. These areas could remain weeks after the onset of symptoms. It indicated the possible involvement of the vascular compromise of the inner choroid in the pathogenesis of AMN.