title: Modified technique for inducing posterior vitreous detachment through the posterior precortical vitreous pocket during microincision vitreous surgery with a wide-angle viewing system.
abstract: OBJECTIVE
  To introduce a simple technique to create a posterior vitreous detachment (PVD) through the posterior precortical vitreous pocket (PPVP) during microincision vitreous surgery using a wide-angle viewing system (WAVS).
  
  
  METHODS
  This study included 20 eyes of 20 consecutive patients (mean age, 65.6 years; range, 56-76) with a stage 2 or 3 idiopathic macular hole who underwent 25-gauge microincision vitreous surgery using a WAVS and phacoemulsification surgery. A triamcinolone suspension was injected into the vitreous cavity. The triamcinolone facilitated visualization of the posterior wall of the PPVP. Using a vitreous cutter, we suctioned the outer margin of the PPVP. After a resultant small break of the posterior hyaloid membrane developed and enlarged rapidly, a PVD easily expanded at the periphery.
  
  
  RESULTS
  Using this technique, we induced a PVD without close proximity to the optic disk and macula.
  
  
  CONCLUSIONS
  This technique is an easy and safe method for creating a PVD during microincision vitreous surgery using a WAVS.
authors.affiliation: Department of Ophthalmology, Gunma University School of Medicine, Maebashi, Gunma, Japan. takusato@showa.gunma-u.ac.jp
authors.forename: Taku
authors.initials: T
authors.lastname: Sato
authors.forename: Shoji
authors.initials: S
authors.lastname: Kishi
authors.forename: Tomohiro
authors.initials: T
authors.lastname: Otani
authors.forename: Hideaki
authors.initials: H
authors.lastname: Hashimoto
authors.forename: Goro
authors.initials: G
authors.lastname: Watanabe
mesh_terms: D000368:Aged; D058450:Endotamponade; D005260:Female; D006801:Humans; D008297:Male; D008866:Microsurgery / Q000379:methods*; D008875:Middle Aged; D012167:Retinal Perforations / Q000145:classification / Q000601:surgery*; D012189:Retrospective Studies; D013459:Sulfur Hexafluoride / Q000008:administration & dosage; D041623:Tomography, Optical Coherence; D014792:Visual Acuity; D014821:Vitrectomy / Q000379:methods*; D014822:Vitreous Body / Q000601:surgery*; D020255:Vitreous Detachment / Q000473:pathology / Q000601:surgery*
chemical_list: D013459:Sulfur Hexafluoride