Longitudinal assessment of the choroidal vascularity index in eyes with branch retinal vein occlusion-associated cystoid macular edema

• Main Authors: Pant, Praruj, Kundu, Anita, Rathinavelu, Jay K., Wei, Xin, Agrawal, Rupesh, Stinnett, Sandra S., Kim, Jane S., Thomas, Akshay S., Fekrat, Sharon
• Other Authors: Lee Kong Chian School of Medicine (LKCMedicine)
• Format: Article
• Language: English
• Published: 2023
• Subjects: Science::Medicine; Branch Retinal Vein Occlusion; Choroidal Vascularity Index
• Online Access: https://hdl.handle.net/10356/169655
• Institution: Nanyang Technological University

Cystoid macular edema (CME) is the most common cause of central vision loss in eyes with branch retinal vein occlusion (BRVO eyes). In recent literature, choroidal vascularity index (CVI) has been proposed to be an enhanced depth imaging optical coherence tomography (EDI-OCT) metric that may help characterize choroidal vascular changes in the setting of retinal ischemia, and potentially prognose visual outcomes and treatment patterns for patients with BRVO-related CME. This study sought to further characterize choroidal vascular changes in BRVO by comparing the CVI, subfoveal choroidal thickness (SFCT), and central subfield thickness (CST) in BRVO eyes with CME compared to unaffected fellow eyes.