Can J Ophthalmol
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Comparative Study
Optical coherence tomography angiography analysis of the retina in patients recovered from COVID-19: a case-control study.
To quantify the density of the macular microvasculature and the area of the foveal avascular zone (FAZ) in patients recovered from coronavirus disease 2019 (COVID-19) using optical coherence tomography angiography (OCTA) analysis. ⋯ Patients recovered from COVID-19 displayed alterations in the retinal microvasculature, including a significantly lower VD in the SCP and DCP. Patients with coronavirus infection may be at risk of retinal vascular complications.
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Giant cell arteritis (GCA) is the most common primary vasculitis affecting the elderly population. GCA preferentially involves the extracranial branches of the carotid artery; intracranial vasculitis is thought to be a rare occurrence. This study determined the prevalence of intracranial vasculitis in a large series of patients evaluated for GCA and describes the clinical presentation of such cases. ⋯ Although uncommon, clinicians should be aware that GCA can directly involve the intracranial circulation with both the anterior and posterior circulation affected in most of our cases.