title: [The morphologic structure of vitreous hemorrhage and posterior vitreous detachment].
abstract: OBJECTIVE
  To investigate the morphologic structures of vitreous hemorrhage that may be beneficial to its treatment.
  
  
  METHODS
  The clinical data of 74 cases (79 eyes) with vitreous hemorrhage resulting from proliferative diabetic retinopathy, retinal vasculitis and retinal vein occlusion in December 1995 to January 2000 and having undergone vitrectomy were studied retrospectively, which focused on the morphologic characteristics of vitreous body by B-scan, surgical microscopy and surgical manipulation, to evaluate the relation of retina and vitreous body in order to discern the relationships among the retina, neovascular fibromembrane and the posterior hyaloid surface.
  
  
  RESULTS
  Posterior vitreous detachment (PVD) in various degrees was observed in all the cases. The morphologic character was classified as the complete and partial vitreous detachment. The latter one can be subdivided into "V", "L" types and posterior vitreoschisis that was not rarely seen in the proliferative phase of ischemic retinopathy.
  
  
  CONCLUSIONS
  To evaluate the characteristics of posterior vitreous detachment and vitreoschisis may provide valuable information for vitreoretinal surgery, elevate the rate of success and improve the prognosis of the surgery.
authors.affiliation: Department of Ophthalmology, Affiliated Beijing Tong Ren Hospital, Capital University of Medical Sciences, Beijing 100730, China.
authors.forename: N
authors.initials: N
authors.lastname: Weng
authors.forename: W
authors.initials: W
authors.lastname: Wei
authors.forename: X
authors.initials: X
authors.lastname: Zhu
mesh_terms: D000328:Adult; D000368:Aged; D003930:Diabetic Retinopathy / Q000150:complications; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012160:Retina / Q000473:pathology; D015861:Retinal Neovascularization / Q000473:pathology; D012170:Retinal Vein Occlusion / Q000150:complications; D012189:Retrospective Studies; D014657:Vasculitis / Q000150:complications; D014821:Vitrectomy; D014822:Vitreous Body / Q000473:pathology; D020255:Vitreous Detachment / Q000175:diagnosis*; D014823:Vitreous Hemorrhage / Q000175:diagnosis* / Q000209:etiology