We thank Dr Liu for the interest in our article and will respond to the questions raised (1). First, Dr Liu pointed out that a single photograph of the fluorescein angiogram does not offer enough evidence for a diagnosis of central retinal artery occlusion (CRAO). We have already extensively discussed this with the reviewers and editor of the journal before our article was accepted. When we did this, we carefully reviewed the fluorescein angiogram and found in the early phase of the study that there was good choroidal filling (Fig. 1). In the Photo Essay, Figure 2A shows a later stage of the angiogram when filling of the choroid was complete, yet there was no perfusion of the retinal vessels. Furthermore, the appearance of the vascular occlusion in Figure 2A is actually more suggestive of an occlusive vasculitis than a CRAO caused by emboli, adding further support for the diagnosis of Behçet disease (BD).