Multimodal imaging in a case of acute idiopathic maculopathy

Abstract

<br>Bacillary layer detachment (BLD) is an optical coherence tomography (OCT) finding depicting split within the inner segment of myoids. We present a case of acute idiopathic maculopathy in a young female who presented with sudden painless diminution of vision in the left eye without a prodromal viral illness. On the OCT splitting of ellipsoid and myoid zone of rod, inner segments were noted suggestive of BLD, whereas optical coherence tomography angiography showed flow void areas on choriocapillaris slab. BLD in acute idiopathic maculopathy occurs due to poor choroidal perfusion leading to stress and splitting of bacillary layer. However, once choroidal perfusion improves, BLD resolves and hence no treatment is required.<br>