Journal
JOURNAL OF OPHTHALMOLOGY
Volume 2022, Issue -, Pages -Publisher
HINDAWI LTD
DOI: 10.1155/2022/5823345
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Optic nerve head edema is a common clinical manifestation of various eye and systemic disorders, and imaging techniques are used to differentiate the underlying causes and monitor the disease progression. Optical coherence tomography angiography is a noninvasive imaging method that has been extensively used to study vascular changes in ONH disorders.
Optic nerve head (ONH) edema is a clinical manifestation of many ocular and systemic disorders. Ocular and central nervous system imaging has been used to differentiate the underlying cause of ONH edema and monitor the disease course. ONH vessel abnormalities are among the earliest signs of impaired axonal transportation. Optical coherence tomography angiography (OCTA) is a noninvasive method for imaging ONH and peripapillary vessels and has been used extensively for studying vascular changes in ONH disorders, including ONH edema. In this narrative review, we describe OCTA findings of the most common causes of ONH edema and its differential diagnoses including ONH drusen.
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