Wide-Field Swept-Source Optical Coherence Tomography Angiography Analysis of the Periarterial Capillary-Free Zone in Branch Retinal Vein Occlusion

• DOI: 10.1167/tvst.10.2.9
• Publication Date: 2021-02-11T07:22:51Z
• Authors: Wenyi Tang; Jingli Guo; Xiaonan Zhuang; Ting Zhang; Ling Wang; Keyan Wang; Qing Chang; Wei Liu; Gezhi Xu
• Keywords: Retinal Artery; Central retinal artery

Purpose: To investigate the characteristics of retinal periarterial capillary-free zone (paCFZ) with wide-field swept-source optical coherence tomography angiography (SS-OCTA) in eyes branch vein occlusion (BRVO). Methods: Seventy treatment-naïve BRVO and 35 healthy were included. The paCFZ areas, artery calibers, areas major arteries unaffected quadrants measured 12 × 12-mm SS-OCTA images compared those contralateral eyes. Other multimodal imaging data collected. Results: There no significant differences caliber or area among three groups (all P > 0.05). ratios to counterpart (paCFZ/artery area) significantly larger than < Subgroup analysis revealed that paCFZ/artery value differed between ischemic nonischemic (P 0.01). was positively correlated logMAR best-corrected visual acuity, symptom duration, central macular thickness, nonperfusion BRVO. Conclusions: Quantitative measurements confirmed enlarged paCFZs along parameters ischemia, function. Translational Relevance: Retinal zones can be non-invasively by SS-OCTA, assisting clinically identifying ischemia evaluating