Journal
RETINA-THE JOURNAL OF RETINAL AND VITREOUS DISEASES
Volume 38, Issue 3, Pages 550-558Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/IAE.0000000000001566
Keywords
branch retinal vein occlusion; macula edema; intravitreal injection of ranibizumab; choroidal thickness; choroidal blood flow
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Funding
- Grants-in-Aid for Scientific Research [15K10843, 15K15637] Funding Source: KAKEN
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Purpose: To determine the choroidal blood flow and subfoveal choroidal thickness (SCT) in eyes with macular edema secondary to branch retinal vein occlusion (BRVO). Methods: Thirty-two eyes of 32 patients with macular edema secondary to a BRVO were treated with a single intravitreal injection of ranibizumab (IVR) and were followed for 2 months. The central retinal thickness and SCT, and the retinal and choroidal blood flows were evaluated, and they were compared between the recurrent and resolved groups. Results: At the baseline, the SCT of eyes with a BRVO was significantly thicker than that of the fellow eye (P < 0.01). It was also significantly thicker in the recurrent group than in the resolved group (P = 0.03). The reduction of the retinal blood flow was found only after 1 week in the resolved group. The SCT and choroidal blood flow were significantly reduced during the follow-up period in the resolved group but not in the recurrent group. Conclusion: The choroid is involved in the pathology of BRVO and the SCT at the baseline may be a predictive factor in the treatment of intravitreal injection of ranibizumab for macular edema secondary to BRVO.
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