102
Participants
Start Date
September 1, 2021
Primary Completion Date
May 29, 2022
Study Completion Date
May 29, 2022
preoperative group and intraoperative group
ranibizumab injection (0.5mg/0.05ml) 3-5 days before vitrectomy or ranibizumab injection (0.5mg/0.05ml) at the end of vitrectomy
People's Hospital of Peking University, Beijing
Peking University People's Hospital
OTHER