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Improvement of vascular density of macular capillaries in acute Vogt‐Koyanagi‐Harada disease after glucocorticoid therapy

The thickened choroid usually causes oedema and compresses the choroidal vessels in the acute stage of VogtKoyanagi-Harada disease (VKH), leading to impaired blood flow, which is attributed to inflammatory cell infiltration and necrotising granuloma. Choroidal microcirculation disturbance is a critical issue related to the treatment outcome. Hence, we quantitatively investigated the changes in vascular density (VD) of the superficial capillary plexuses (SCP), deep capillary plexuses (DCP) and choriocapillaris within the macula, and the subfoveal choroidal thickness (SCT), in patients with VKH after glucocorticoid therapy. This retrospective study enrolled patients based on the First International Workshop on VKH. Every patient