Relationship between perifoveal capillaries and pathomorphology in macular oedema associated with branch retinal vein occlusion

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Abstract

Purpose: To study the relationship between macular ischaemia on fluorescein angiography (FA) and pathomorphology at the foveal centre delineated by spectral-domain optical coherence tomography (OCT) in macular oedema (MO) associated with branch retinal vein occlusion (BRVO). Methods: One hundred and five consecutive eyes of 105 patients with MO (centre point thickness (CPT) ≥300 μm) associated with BRVO in which FA using Heidelberg Retinal Angiography 2 and Spectralis OCT were performed on the same day were retrospectively reviewed. We evaluated the foveal pathomorphology using OCT images and the association with macular ischaemia. Results: Within 1 year from symptom onset, 94 eyes were classified with perfused macula (34 eyes) or non-perfused macula (60 eyes). Eyes with perfused macula had better visual acuity and less CPT than those with non-perfused macula (P=0.024 and P<0.001, respectively). Fourteen eyes with perfused macula had serous retinal detachment (SRD) alone at the presumed foveal centre (SRD type); seven, a sponge-like swelling at that area (retinal swelling type); 11, foveal cystoid spaces alone (cystoid MO (CMO) type), and 2, with both SRD and foveal cystoid spaces (SRD+CMO type). However, 58 eyes with non-perfused macula had foveal cystoid spaces (42 of CMO type and 16 of SRD+CMO type), with a significant association between them (P<0.001). Among 11 eyes with symptoms exceeding 1 year, 6 eyes had perfused macula, and none had the SRD type. Conclusion: Most eyes without foveal cystoid spaces have perfused macula in MO associated with BRVO. © 2012 Macmillan Publishers Limited All rights reserved.

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Murakami, T., Tsujikawa, A., Miyamoto, K., Sakamoto, A., Ota, M., Ogino, K., & Yoshimura, N. (2012). Relationship between perifoveal capillaries and pathomorphology in macular oedema associated with branch retinal vein occlusion. Eye (Basingstoke). Nature Publishing Group. https://doi.org/10.1038/eye.2012.85

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