2023年6月22日 · To study the optical coherence tomography (OCT) changes in eyes with acute central retinal artery occlusion (CRAO) of different severity and at different disease stages. The study included acute CRAO cases of < 7 days duration, imaged on OCT at various time points.

The aim of this study was to describe fluorescein angiography (FA), ocular coherence tomography (OCT) and ocular coherence tomography angiography (OCTA) in the diagnosis of acute central retinal artery occlusion (CRAO). This is an observational case series study performed at Sohag Ophthalmic Investi …

2024年2月10日 · Optical coherence tomography angiography (OCTA) is an advanced technology that utilizes optical coherence tomography (OCT) to provide detailed information about the blood flow parameters in different retinal layers and the choroid's blood flow characteristics, while avoiding mydriasis [15].

OCTA is a novel, noninvasive imaging method based on the flow rate of erythrocytes moving above a detection rate threshold through the blood vessel lumen. OCTA uses algorithms to measure the variation in reflected OCT signal amplitude between consecutive cross-sectional B-scans, generating high-quality angiograms of the retina and choroid . SS ...

The optical coherence tomography angiography (OCTA) microvascular features of branch and central retinal artery occlusion are described and correlated with fluorescein angiographic and clinical findings. There may be differences in the distribution of reduced vascular perfusion/flow between the supe …

2015年4月15日 · Optical coherence tomography angiography (OCTA) is a new, non-invasive imaging technique that generates volumetric angiography images in a matter of seconds. This is a nascent technology with a potential wide applicability for retinal vascular disease. At present, level 1 evidence of the technology’s clinical applications doesn’t exist.

2017年8月1日 · Central retinal artery occlusion (CRAO) is an ocular emergency. Patients typically present with profound, acute, painless monocular visual loss—with 80% of affected indi­viduals having a final visual acuity of counting fingers or worse.

2024年2月10日 · OCTA is valuable for assessing retinal ischemia, and evaluating visual impairment. Deep retinal vasculature is commonly affected in all NA-CRAO types. VD-SVPs at fovea and nasal parafovea can serve as reliable markers of visual impairment in NA-CRAO.

Central retinal artery occlusion (CRAO) is a catastrophic ophthalmic emergency that severely impairs a patient’s visual function, often reducing visual acuity to counting fingers or worse. Progress in CRAO research has provided new information regarding its epidemiological characteristics and led to useful assessments through various ...

The medical condition referred to as “central retinal artery occlusion” (CRAO) was first documented by Albrecht von Graefe in 1859. Subsequently, CRAO has consistently been identified as a serious medical condition that leads to substantial visual ...