title: Diagnostic ultrasound and pars plana vitrectomy in penetrating ocular trauma.
abstract: OBJECTIVE
  The purpose of this study is to evaluate the accuracy of diagnostic ultrasonography in the preoperative evaluation of eyes with media opacity after penetrating ocular trauma and correlate the preoperative findings with ultimate visual outcome.
  
  
  METHODS
  A retrospective comparison was made between the preoperative ultrasound diagnoses and the intraoperative findings in 46 eyes of 45 patients undergoing pars plana vitrectomy after penetrating ocular trauma associated with dense media opacities. The preoperative echographic findings were correlated with long-term visual and anatomic outcome.
  
  
  RESULTS
  Preoperative echography was both sensitive and specific in evaluating traumatized eyes for retinal detachment, intraocular foreign bodies, posterior scleral wounds, and hemorrhagic choroidal detachments. The overall anatomic success rate was 87% (40/46) with 48% (22/46) of eyes obtaining visual acuity of 20/200 or better after surgery. The visual prognosis was worse in those eyes in which preoperative echography detected retinal detachment, subretinal blood, massive choroidals, or posterior exit wounds.
  
  
  CONCLUSIONS
  Diagnostic echography is accurate and provides useful prognostic information in eyes with media opacity after penetrating ocular trauma.
authors.affiliation: Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami School of Medicine, FL 33101.
authors.forename: P E
authors.initials: PE
authors.lastname: Rubsamen
authors.forename: S W
authors.initials: SW
authors.lastname: Cousins
authors.forename: K E
authors.initials: KE
authors.lastname: Winward
authors.forename: S F
authors.initials: SF
authors.lastname: Byrne
mesh_terms: D002832:Choroid Hemorrhage / Q000000981:diagnostic imaging; D005129:Eye Foreign Bodies / Q000000981:diagnostic imaging / Q000601:surgery; D015807:Eye Injuries, Penetrating / Q000000981:diagnostic imaging* / Q000601:surgery*; D005189:False Positive Reactions; D006801:Humans; D007908:Lens, Crystalline / Q000000981:diagnostic imaging / Q000293:injuries; D015203:Reproducibility of Results; D012163:Retinal Detachment / Q000000981:diagnostic imaging; D012166:Retinal Hemorrhage / Q000000981:diagnostic imaging; D012189:Retrospective Studies; D012590:Sclera / Q000000981:diagnostic imaging / Q000293:injuries; D012680:Sensitivity and Specificity; D014463:Ultrasonography; D014792:Visual Acuity; D014821:Vitrectomy