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Article Abstract
Aim: To investigate the anti-inflammatory effect of intravitreal injection of anti-vascular endothelial growth factor (anti-VEGF) in patients with macular edema secondary to retinal vein occlusion (RVO-ME).
Methods: Twenty-eight eyes from twenty-eight treatment-naïve patients (14 males and 14 females) with RVO-ME were included in this retrospective study. The retinal vein occlusion (RVO) was comprised of both central retinal vein occlusion (CRVO, =14) and branch retinal vein occlusion (BRVO, =14). Intravitreal injection of anti-VEGF reagents were administered monthly for three consecutive months, in which 18 patients were injected with ranibizumab and 10 patients were injected with conbercept. All eyes were imaged with optical coherence tomography angiography (OCTA) at baseline and 1wk after monthly intravitreal anti-VEGF injection. The visual acuity (VA), central macular thickness (CMT), the number of hyperreflective foci (HRF) recognized as an inflammatory sign in OCT images, and non-perfusion area (NPA), were compared before and after anti-VEGF treatments.
Results: The mean interval between baseline and follow-up was 29.4±0.79 (range, 27-48)d. Compared with the baseline, the VA improved (logMAR 1.5±0.1 0.8±0.1, <0.05) and CMT decreased (460±34.0 µm 268.8±12.0 µm, <0.05), significantly, after anti-VEGF treatment. The number of HRF was decreased significantly (76.5±4.8 47.8±4.3, <0.05) after anti-VEGF treatment.
Conclusion: Anti-VEGF therapy is effective in treating RVO-ME. The mechanisms for the decreased HRF and the reduction of NPA by anti-VEGF therapy merits further exploration.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9358184 | PMC |
| http://dx.doi.org/10.18240/ijo.2022.08.11 | DOI Listing |
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