title: Vitrectomy for proliferative diabetic retinopathy with asteroid hyalosis.
abstract: OBJECTIVE
  To characterize the clinical features of proliferative diabetic retinopathy (PDR) with asteroid hyalosis treated by pars plana vitrectomy.
  
  
  METHODS
  Vitrectomy was performed in 26 eyes with PDR accompanied by asteroid hyalosis (7 eyes with vitreous hemorrhage, 6 eyes with tractional retinal detachment with vitreous hemorrhage, and 13 eyes with tractional retinal detachment without vitreous hemorrhage). We observed the occurrence of posterior vitreous detachment intraoperatively and evaluated the clinical characteristics retrospectively.
  
  
  RESULTS
  In 24 eyes, posterior vitreous detachment was slight, necessitating artificial detachment. Of the 26 eyes, 20 experienced iatrogenic retinal breaks and 6 (23%) experienced postoperative retinal detachment due to iatrogenic breaks. Three cases worsened to anterior proliferative vitreoretinopathy and retinal reattachment could not be achieved.
  
  
  CONCLUSIONS
  In vitrectomy for PDR with asteroid hyalosis, and in cases of simple vitreous hemorrhage, surgery should be performed with full understanding of the anatomic characteristics. Notably, if posterior vitreous detachment is not present, the occurrence of iatrogenic retinal breaks is more likely.
authors.affiliation: Department of Ophthalmology, Kyoto Prefectural University of Medicine, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Ikeda
authors.forename: H
authors.initials: H
authors.lastname: Sawa
authors.forename: K
authors.initials: K
authors.lastname: Koizumi
authors.forename: T
authors.initials: T
authors.lastname: Yasuhara
authors.forename: S
authors.initials: S
authors.lastname: Kinoshita
authors.forename: Y
authors.initials: Y
authors.lastname: Tano
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003930:Diabetic Retinopathy / Q000150:complications / Q000175:diagnosis / Q000601:surgery*; D005128:Eye Diseases / Q000150:complications / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D012008:Recurrence; D012086:Reoperation; D012163:Retinal Detachment / Q000175:diagnosis / Q000209:etiology / Q000601:surgery; D012189:Retrospective Studies; D014821:Vitrectomy; D018630:Vitreoretinopathy, Proliferative / Q000150:complications / Q000175:diagnosis / Q000601:surgery*; D014822:Vitreous Body / Q000601:surgery*; D020255:Vitreous Detachment / Q000150:complications / Q000175:diagnosis / Q000601:surgery; D014823:Vitreous Hemorrhage / Q000175:diagnosis / Q000209:etiology / Q000601:surgery