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Imaging the Living Eye
Published in Margarida M. Barroso, Xavier Intes, In Vivo, 2020
Brian T. Soetikno, Lisa Beckmann, Hao F. Zhang
Branch retinal vein occlusion (BRVO) is an ischemic disease of the retina that results from decreased blood flow in one or more major retinal veins. Figures 14.9D–F show OCTA images of a BRVO model created by imaging-guided photocoagulation, taken with a NIR OCT system (Soetikno et al., 2017). Figure 14.9D shows an en face OCTA image of the vasculature before occlusion. The major arteries and veins are labeled as an a and v, respectively. The vein branch, indicated by the white circle, was occluded. The OCTA image after occlusion (Figure 14.9E) shows capillary nonperfusion in the area (white-dashed area) surrounding the occlusion site. This area increased on Day 1 as detected by the OCTA image shown in Figure 14.9F.
Design and Development of Low-Cost Portable System for Detection of Eye Diseases
Published in Durgesh Kumar Mishra, Nilanjan Dey, Bharat Singh Deora, Amit Joshi, ICT for Competitive Strategies, 2020
Jaya Prasad, Reema Anne Roy, Monish Mohan Kora, Abin Sam, Chriso Christudhas, Pranali Choudhari
Arteries and veins transport blood through your body, counting your eyes. The eye’s retina has one major artery and vein. When branches of the retinal vein become congested, it is called branch retinal vein occlusion (BRVO).
Swept-source optical coherence tomography imaging of the retinochoroid and beyond
Published in Expert Review of Medical Devices, 2020
Jayesh Vira, Alessandro Marchese, Rohan Bir Singh, Aniruddha Agarwal
Another important retinal vascular abnormality that can be benefitted from SS-OCT technology is retinal vein occlusion (RVO) (both central and branch RVO). Similar to DR, SS-OCT and SS-OCTA studies have focused on the central macular edema and vascular parameters in RVO with an attempt to improve treatment decision-making and prognostication of the patient. Costanzo et al. investigated the retinal and choroidal microvascular changes and structural choroidal involvement in RVOs in 30 eyes of 30 patients. In this study, the authors did not observe any difference in the vascular densities of patients of branch retinal vein occlusion (BRVO) versus central retinal vein occlusion (CRVO) using SD-OCT device, but significant differences were detected in both superficial and deep vascular plexuses using SS-OCTA [14].