Clinical Research Directory

Inclusion Criteria: * Cystic or diffuse edema in the macular area, retinal vein tortuous dilation with hemorrhage * Optical coherence tomography (OCT) examination showed that the macular area was raised, edema and thickened * Monocular disease, baseline central retinal thickness (CRT) ≥ 250mm * Intravitreal injection, laser photocoagulation and blood circulation and blood stasis removal drugs were not treated before surgery * The patient had normal blood pressure, negative urine protein, normal liver and kidney function, and normal electrocardiogram Exclusion Criteria: * Patients with fluorescein fundus angiography (FFA) showing a large area (10 optic disc areas) without perfusion requiring retinal photocoagulation * Patients with chronic dacryocystitis, glaucoma, cataract, severe proliferative vitreoretinopathy or vitreous hemorrhage, epi macular membrane or macular ischemia, diabetic retinopathy, age-related macular degeneration, ocular trauma and other diseases * Intravitreal therapy or laser photocoagulation with corticosteroids or anti-VEGF drugs within three months before the study