scholarly journals Retinal Microvasculature and Visual Acuity in Eyes With Branch Retinal Vein Occlusion: Imaging Analysis by Optical Coherence Tomography Angiography

2017 ◽  
Vol 58 (4) ◽  
pp. 2087 ◽  
Author(s):  
Taku Wakabayashi ◽  
Tatsuhiko Sato ◽  
Chikako Hara-Ueno ◽  
Yoko Fukushima ◽  
Kaori Sayanagi ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Visual Acuity ◽  
Retinal Vein Occlusion ◽  
Branch Retinal Vein Occlusion ◽  
Optical Coherence Tomography Angiography ◽  
Optical Coherence ◽  
Imaging Analysis ◽  
Vein Occlusion ◽  
Retinal Microvasculature

Fundus Fluorescein Angiography, Optical Coherence Tomography, and Optical Coherence Tomography Angiography Findings in Branch Retinal Vein Occlusion

2019 ◽  
pp. 83-87
Keyword(s):  
Optical Coherence Tomography ◽  
Fluorescein Angiography ◽  
Retinal Vein Occlusion ◽  
Branch Retinal Vein Occlusion ◽  
Optical Coherence Tomography Angiography ◽  
Serous Retinal Detachment ◽  
Optical Coherence ◽  
Fundus Fluorescein Angiography ◽  
Vein Occlusion ◽  
Capillary Plexus

Even though the diagnosis depends on clinical examination, in cases with branch retinal vein occlusion (BRVO), fundus fluorescein angiography (FFA), optical coherence tomography (OCT), and optical coherence tomography angiography (OCTA) provide unique data for follow-up, management and prognosis. In FFA, delay of laminar flow phase in the involved branch, hyperfluorescence due to leakage from the vessel wall in the late phases, hypofluorescence due to the blockage by hemorrhage, and soft exudates, and hyperfluorescence due to macular edema can be detected. In OCT, macular thickening, cystic spaces, serous retinal detachment, hyperreflective dots, disorganization of the outer retinal layers – particularly the photoreceptor inner and outer segments line and the external limiting membrane – can be seen. OCTA reveals non-perfusion, particularly in the deep capillary plexus.

Collateral vessels on optical coherence tomography angiography in eyes with branch retinal vein occlusion

2018 ◽  
Vol 103 (10) ◽  
pp. 1373-1379 ◽  
Author(s):  
Norihiro Suzuki ◽  
Yoshio Hirano ◽  
Taneto Tomiyasu ◽  
Ryo Kurobe ◽  
Yusuke Yasuda ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Retinal Vein Occlusion ◽  
Macular Oedema ◽  
Branch Retinal Vein Occlusion ◽  
Optical Coherence Tomography Angiography ◽  
Optical Coherence ◽  
Visual Outcomes ◽  
Vein Occlusion ◽  
The Mean ◽  
Collateral Vessels

AimsTo detect collateral vessels using optical coherence tomography angiography (OCTA) in eyes with branch retinal vein occlusion (BRVO) and to investigate the associations with visual outcomes and macular oedema.MethodsEyes with macular oedema secondary to BRVO that underwent OCTA at baseline and were followed up for more than 6 months were enrolled. The presence of collaterals, whether the collaterals were leaky or not, and the associations with visual outcomes and macular oedema were investigated.ResultsTwenty-eight eyes of 28 patients (8 men and 20 women; mean age, 68 years) were enrolled. Collaterals were detected in 23 eyes (82%) and already existed at the initial visit. Collaterals were more frequently detected in eyes with major BRVO or ischaemic type. One-third of the collaterals were leaky and all of the leaky collaterals had microaneurysms (MAs) inside. Macular oedema in eyes with collaterals was more quickly and frequently resolved than that in eyes without collaterals, but there were no significant differences. Collateral vessel formation did not seem to impact on visual outcomes, but the mean baseline central retinal thickness (CRT) was significantly higher in eyes with collaterals, and the mean CRT reduction at 6 months after treatments was significantly greater than in eyes without collaterals.ConclusionsThese results suggest that collateral vessels are formed at the acute phase in eyes with BRVO. In addition, the presence of collaterals might be associated with absorption of macular oedema, but MAs formed in collaterals sometimes can cause macular oedema.

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