title: Subfoveal fluid resolves slowly after pars plana vitrectomy for tractional retinal detachment secondary to proliferative diabetic retinopathy.
abstract: OBJECTIVE
  To report delayed visual recovery resulting from slow resolution of subfoveal subretinal fluid measured with optical coherence tomography (OCT) after pars plana vitrectomy (PPV) for repair of tractional retinal detachment (TRD) involving the fovea secondary to proliferative diabetic retinopathy (PDR).
  
  
  METHODS
  In this retrospective case series, charts of three patients with persistent subfoveal fluid after PPV for TRD secondary to PDR were reviewed. All patients were followed up for a minimum of 1 year after surgery, using OCT and serial ophthalmic examination.
  
  
  RESULTS
  Subfoveal fluid resolved completely after a minimum of 6 months after PPV as measured by OCT. All three patients had improvement in visual acuity after subfoveal fluid was completely resolved.
  
  
  CONCLUSIONS
  Persistent subfoveal fluid may take several months to resolve in patients undergoing PPV to repair TRD secondary to PDR and account for delayed visual recovery. OCT is an important tool in the follow-up of patients undergoing vitrectomy for TRD.
authors.affiliation: National Retina Institute, Chevy Chase, Maryland 20815, USA.
authors.forename: Nazanin
authors.initials: N
authors.lastname: Barzideh
authors.forename: T Mark
authors.initials: TM
authors.lastname: Johnson
mesh_terms: D001826:Body Fluids / Q000378:metabolism*; D003930:Diabetic Retinopathy / Q000150:complications* / Q000175:diagnosis; D005122:Exudates and Transudates / Q000378:metabolism; D005260:Female; D005451:Fluorescein Angiography; D005500:Follow-Up Studies; D006801:Humans; D008875:Middle Aged; D012163:Retinal Detachment / Q000175:diagnosis / Q000209:etiology / Q000378:metabolism* / Q000601:surgery*; D015861:Retinal Neovascularization / Q000150:complications* / Q000175:diagnosis; D012189:Retrospective Studies; D041623:Tomography, Optical Coherence; D014792:Visual Acuity / Q000502:physiology; D014821:Vitrectomy