Abstract
Non-arteritic ischemic optic neuropathy (NAION) is a neurological disease due to poor perfusion in optic disk. It causes severe visual function impairment, characterized by loss of vision and visual field defect. Optical coherence tomography (OCT) is vital for detecting anterior laminar depth, peripapillary nerve fiber layer thickness, ganglion cell complex thickness and peripapillary choroid thickness change in eyes with NAION at different course of the disease. In addition, OCT features are in accordance with visual function impairment. OCT angiography (OCTA) reveals retinal and choroidal vasculature networks in optic and macular area. OCTA revealed vasculature perfusion decline in eyes with NAION, even if their visual sensitivity and visual evoked potential were normal. Studying OCT and OCTA features is vital for exploring the pathogenesis and prognosis of NAION. Key words: Optic neuropathy ischemic/diagnosis; Tomography, optical coherence; Optic disk; Nerve fibers; Choroid; Regional blood flow; Review
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