Varicella Retinal Vasculopathy: Unilateral Cilioretinal Artery Occlusion Despite Acyclovir Therapy Caught Using Optical Coherence Tomography-Angiography (OCTA)

Varicella zoster is known to be associated with vaso-occlusive pathologies, vasculitis, or optic neuritis, leading to profound visual loss. We report a case where a 13-year-old boy who initially presented to us with on and off diminution of vision in his right eye since 3 days and had normal ocular and OCT angiography findings followed up in 5 days with sudden painless diminution of vision in the same eye since one day this time revealing a pale macular region with rest of the retina being normal. Repeated OCT angiography showed loss of the capillary network around the perifoveal region suggesting cilioretinal artery occlusion.