Rondomized prospective trials of intravitreal bevacizumab alone versus combined with photocoagulation for ischmic lesion in retinal venous occlusion

INTERVENTION: Photocoagulation for non‐perfusion areas after injection of bevacizumab. Injection of bevacizumab without photocoagulation. CONDITION: macular edema due to branch retinal vein occlusion PRIMARY OUTCOME: Central retinal thickness at 3 months after the injection of bevacizumab. SECONDARY OUTCOME: Best corrected visual acuity at 3 months after the injection of bevacizumab. INCLUSION CRITERIA: Patients diagnosed with branch retinal vein occlusion with macular edema were enrolled. Patient who obtained agreement after enough explanation when participating in this study is received.