This is the case of a 52-year-old woman hospitalized due to subarachnoid hemorrhage (SAH) due to ruptured aneurysm in the anterior communicating artery (Fig. 1). The patient developed intracranial hypertension and vasospasm. One month later, the patient’s neurological status improved, but with signs of less visual acuity and zoopsias (bees). The fondus oculi revealed the presence of bilateral vitreous hemorrhage already present on the early CT scan performed (Fig. 2, arrows). The bilateral vitrectomy performed improved the clinical features.

Figure 1

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Figure 2

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Terson syndrome consists of the association of intraocular hemorrhage and SAH and has a poor neurological prognosis. It is a treatable cause of loss of vision, and often goes misdiagnosed despite its high rate (2%–28%) in patients with massive HAS with comatose state as their initial clinical presentation.