title: New system for fiberoptic-free bimanual vitreous surgery.
abstract: OBJECTIVE
  To describe a new system for fiberoptic-free bimanual vitrectomy and to present the outcome of 37 eyes with preretinal membranes due to diabetic retinopathy or proliferative vitreoretinopathy that underwent surgery using this system.
  
  
  METHODS
  The system consists of a 40-diopter aspheric field lens suspended from the operating microscope and a prismatic inverting device. The aspheric lens is placed above the cornea, and the illumination from the operating microscope creates an inverted image of the fundus, which is made erect by an inverter system. No fiberoptics are required, and both hands are free to use 2 microinstruments.
  
  
  METHODS
  The practical utility of this system and its surgical results and complications.
  
  
  RESULTS
  The system was used successfully in all cases. Membrane dissection and hemostasis were performed without incident. An improvement in visual acuity of 2 or more lines was found in 30 of 37 eyes. Five eyes did not reveal change of 2 or more lines, and 2 eyes had a decrease in visual acuity of more than 2 lines. There was no evidence of phototoxicity.
  
  
  CONCLUSIONS
  This system is very useful for bimanual vitrectomy.
authors.affiliation: Department of Ophthalmology, Fujita Health University School of Medicine, Kutsukakecho, Toyoakeshi, Aichi 470-1192, Japan. masayuki@fujita-hu.ac.jp
authors.forename: Masayuki
authors.initials: M
authors.lastname: Horiguchi
authors.forename: Yoshihisa
authors.initials: Y
authors.lastname: Kojima
authors.forename: Yoshiaki
authors.initials: Y
authors.lastname: Shimada
mesh_terms: D003930:Diabetic Retinopathy / Q000150:complications; D019773:Epiretinal Membrane / Q000209:etiology / Q000601:surgery*; D005336:Fiber Optic Technology; D006801:Humans; D008853:Microscopy; D014792:Visual Acuity; D014821:Vitrectomy / Q000379:methods*; D018630:Vitreoretinopathy, Proliferative / Q000150:complications