title: Extraction of posterior polar intraocular foreign bodies with sodium hyaluronate backsiphon technique.
abstract: OBJECTIVE
  To explore the new technique on the removal of posterior polar intraocular foreign bodies (IOFBs).
  
  
  METHODS
  Dint of viscoelasticity and cohesiveness of ophthalmic viscoelastics (sodium hyaluronate) was used to wrap, dissociate and suspend IOFBs. Then IOFBs were approached and backsiphoned by using self-made backsiphon syringe needles which were selected according to the size and shape of IOFBs. The IOFBs are removed with the inflow of sodium hyaluronate naturally surging into the needles.
  
  
  RESULTS
  Posterior polar IOFBs in 13 cases (13 eyes) were all removed successfully at one time. There were no accidental injuries or complications. The postoperative vision in 11 cases (11 eyes) was improved, unchanged in 1 case (1 eye) and decreased in 1 case (1 eye).
  
  
  CONCLUSIONS
  The technique using viscoelastics to dissociate, suspend and backsiphon IOFBs during the removal of the posterior polar IOFBs can evidently decrease operative difficulty, injury and complications.
authors.affiliation: Department of Ophthalmology, Affiliated Hospital of Taishan Medical College, Tai'an 271000, China. sdxtyjm@hotmail.com
authors.forename: Jiumin
authors.initials: J
authors.lastname: Yuan
authors.forename: Zhengyan
authors.initials: Z
authors.lastname: Wang
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D005129:Eye Foreign Bodies / Q000628:therapy*; D005260:Female; D006801:Humans; D006820:Hyaluronic Acid / Q000627:therapeutic use*; D008297:Male; D008875:Middle Aged; D016896:Treatment Outcome; D055682:Viscoelastic Substances / Q000627:therapeutic use*; D014821:Vitrectomy / Q000379:methods*; D055815:Young Adult
chemical_list: D055682:Viscoelastic Substances; D006820:Hyaluronic Acid