The authors report a case of a 48-year-old woman with a branch retinal artery occlusion after the neurosurgical coiling of a paraclinoid aneurysm. Clinical examination revealed a Hollenhorst plaque at the bifurcation of the inferior arcade and at a branch of the superior arcade with associated retinal whitening in the right eye. Follow-up examination at 8 months demonstrated improved visual acuity with near complete resolution of the retinal infarction but a persistent inferior Hollenhorst plaque. This case illustrates a retinal artery occlusion as a possible complication of paraclinoid aneurysmal coiling procedure.
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