<qa>  What is the new drug Recombinant Human VEGF Receptor-FcAs the results of many studies conducted previously, anti-VEGF drugs and anti-VEGF treatments show its effect and safety not only in treating AMD, but also in patients with DME. The new drug Recombinant Human VEGF Receptor-Fc Fusion Protein KH902 is a gene fusion protein. The previous clinical trials of KH902 show that KH902 is effective and safe in inhibiting the growth, migration, pullulation of vascular endothelial cells and neovascularization induced by VEGF. Due to these positive results, the investigators prepare to conduct a clinical trial to assess the safety and efficacy with intravitreal injection of KH902 in patients with DME. 