• Guang Chen, Peng Chen, Xiaoping Chen, Jing Wang, and Xinming Peng.
• Affiliated Hospital of Hebei University, Baoding, Hebei Province, China.
• Medicine (Baltimore). 2021 Jan 29; 100 (4): e23675e23675.

BackgroundAt present, laser is regarded as an effective treatment for macular edema secondary to branch retinal vein occlusion. With the breakthrough of anti-vascular endothelial growth factor drugs in ophthalmology clinical research, the intravitreal injection of ranibizumab is widely applied, but both methods have their limitations, so some clinical studies have combined and applied them together. However, the clinical results are inconsistent and controversial, and there is no relevant system evaluation for the laser combined with intravitreal injection of ranibizumab for treatment of macular edema secondary to branch retinal vein occlusion now.ObjectiveMeta analysis is used to analyze and evaluate the effectiveness and safety of the laser combined with intravitreal injection of ranibizumab for treatment of macular edema secondary to branch retinal vein occlusion.MethodCNKI, VIP, WANFANG, China Biology Medicine disc, Web of Science, PubMed, Embase, Cochrane Library have used random controlled clinical trial of laser combined with intravitreal injection of ranibizumab for treatment of macular edema secondary to branch retinal vein occlusion from the establishment of the database to October 2020. Two researchers conducted independent screening, quality assessment and data extraction for the literatures, and used RevMan5.3 to conduct Meta analysis for the included literatures.ResultThe research has evaluated the effectiveness and safety of the laser combined with intravitreal injection of ranibizumab for treatment of macular edema secondary to branch retinal vein occlusion through the aspects of the best corrected visual acuity 6 months after operation, macular center thickness and the incidence of adverse reactions such as elevated intraocular pressure, endophthalmitis, vitreous hemorrhage and cataract.ConclusionLaser combined with intravitreal injection of ranibizumab for treatment of macular edema secondary to branch retinal vein occlusion has good effect, and the research has provided reliable evidence for the use of clinical treatment of the laser combined with intravitreal injection of ranibizumab for treatment of macular edema secondary to branch retinal vein occlusion.Copyright © 2021 the Author(s). Published by Wolters Kluwer Health, Inc.

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