title: Needle infusion avoids using sutures and prevents hypotony in the 23 gauge sutureless vitrectomy.
abstract: OBJECTIVE
  To investigate the effects of needle infusion on preventing wound leakage and hypotony in sutureless vitrectomy.
  
  
  METHODS
  We retrospectively reviewed 230 consecutive eyes of 23-gauge pars plana vitrectomy with or without needle infusion, and further measured the wound leakage and intraocular pressure (IOP) without using a suture.
  
  
  RESULTS
  In the eyes with primary needle infusion inserted before infusion cannula removal, IOP was stable during and after infusion cannula removal. No suture was needed in the procedure. Postoperative hypotony did not occurred in all eyes with needle infusion either.
  
  
  CONCLUSIONS
  Needle infusion inserted before infusion cannula removal can avoid using sutures and prevent hypotony intraoperatively and postoperatively.
authors.affiliation: Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine Shanghai 200011, P. R. China.
authors.forename: Yingjie
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine Shanghai 200011, P. R. China.
authors.forename: Dongqing
authors.initials: D
authors.lastname: Zhu
authors.affiliation: Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine Shanghai 200011, P. R. China.
authors.forename: Jibo
authors.initials: J
authors.lastname: Zhou
keywords: Hypotony; infusion; needle; sutureless; vitrectomy