Principles of Optical Coherence Tomography Angiography for the Front of the Eye We used the commercially available spectral-domain OCT RT XR Avanti with the AngioVue software (Optovue, Inc., Fremont, CA)….
Introduction Adult-onset foveomacular vitelliform dystrophy (AFVD) is one of the most prevalent forms of macular degeneration.1 AFVD has been included in the heterogeneous group of pattern dystrophy, in which the…
Introduction Over the past 25 years, there has been a dramatic uptake in the usage of optical coherence tomography (OCT) as a noninvasive clinical tool to evaluate the structural anatomy…
Motion Artifacts Since OCTA detects erythrocyte movement to generate contrast, it is extremely motion sensitive and prone to motion artifacts.6 Movements that cause artifacts can occur in the axial direction…
High myopia, defined as spherical equivalent > 6 diopters (D) or axial length greater than 26.5 mm, is a major cause of visual impairment and blindness.1,2,3,4 In high myopia, progressive…
Central retinal artery occlusion (CRAO) presents as sudden, catastrophic visual loss and is therefore, one of the most important topics in ophthalmology. Similarly, branch retinal arterial, or better termed arteriolar,…
Optovue AngioVue The underlying technology of the Optovue AngioVue system is the Avanti SDOCT wide-field imaging system. The Avanti system utilizes an 840-nm light source with a bandwidth of 50…
Pericyte loss, microaneurysm formation, breakdown of the blood–retinal barrier, and capillary nonperfusion impair the nutrition of the neuroglial tissues in the retinal parenchyma, and the resultant hypoxia increases expression of…
Uveitis is an umbrella term for a variety of inflammatory eye conditions. It is a major cause of severe visual impairment worldwide and affects not only the uvea but also…
Introduction Macular telangiectasia type 2 (MacTel2) is a progressive neurogliovascular macular dystrophy starting in the fifth decade of life and evolving progressively toward macular atrophy.1 When the disease becomes symptomatic,…
