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KMID : 0360220120530020283
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Journal of the Korean Ophthalmological Society
2012 Volume.53 No. 2 p.283 ~ p.290
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Long-Term Effects of Intravitreal Bevacizumab Injection for Macular Edema Secondary to Branch Retinal Vein Occlusion
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Song In-Je
Kim Hyun-Woong
Yun Il-Han
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Abstract
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Purpose: To report the long term effects of intravitreal bevacizumab injection (IVAI) for the treatment of macular edema due to branch retinal vein occlusion (BRVO).
Methods: In this retrospective study, 47 consecutive patients (47 eyes) whose visual acuity under 20/40 and macular thickness over 250 μm from BRVO received IVAI (1.25 mg). All patients were observed over 12 months. The patients were classified into three groups: one, resolved macular edema after first injection, second, persistant, third, recurrant. At 12 months after injection, best corrected visual acuity (BCVA) and central macular thickness (CMT) were compared with one another.
Results: Comparing with baseline BCVA (0.96 ± 0.32, 1.13 ± 0.42, 0.85 ± 0.24 log MAR unit), the mean at 12 months was significantly increased (0.50 ± 0.30, 0.76 ± 0.51, 0.55 ± 0.35) in each group. The mean CMT at baseline was 510.84 (± 171.07), 538.5 (± 216.87), 522.6 (± 101.82) μm decreased to 211.58 (± 42.74), 232 (± 132.68), 270.6 (± 85.27).
Conclusions: IVAI was a result of significant decrease of CMT with improvement of BCVA in patients with BRVO after a follow- up of 12 months.
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KEYWORD
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Bevacizumab, Branch retinal vein occlusion, Intravitreal injection, Macular edema
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