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 ...

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.

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.

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 ...

作者： Sonia Mehta, MD, Vitreoretinal Diseases and Surgery Service, Wills Eye Hospital, Sidney Kimmel Medical College at Thomas Jefferson University. 视网膜中央动脉阻塞通常是由于血栓造成的。 它会导致突发的、无痛的、单眼的、且通常是严重的视力丧失。 病史询问结合眼底镜检查视网膜特征性表现可明确诊断。 发生中央动脉阻塞后的24小时内可试行降眼压治疗以清除栓子。 如果患者在发生阻塞后的数小时内就诊，有些医疗中心会施行颈动脉/眼动脉插管并选择性注入 …

2021年7月1日 · Central retinal artery occlusion (CRAO) is a form of acute ischemic stroke which affects the retina. Intravenous thrombolysis is emerging as a compelling therapeutic approach.

Optical coherence tomography angiography (OCTA) is a new, non-invasive imaging technique that generates volumetric angiography images in a matter of...