title: Late orbital haemorrhage around alloplastic orbital floor implants: a case series and review.
abstract: BACKGROUND
  Alloplastic implants have been used to repair orbital wall fractures and correct anophthalmic enophthalmos (or volume deficiency in an anophthalmic socket). Orbital haemorrhage is a rare complication of these implants.
  
  
  METHODS
  A retrospective review of patient files of two consultant oculoplastic surgeons.
  
  
  RESULTS
  Four cases of orbital haemorrhage following alloplastic implants were identified. The haemorrhages occurred 5-18 years after surgery, and occurred within the pseudocapsule of the implant. In one case, recurrent haemorrhages were noted.
  
  
  CONCLUSIONS
  Although rare, orbital haemorrhage is a potential complication of alloplastic orbital floor implants, which may present many years after surgery.
authors.affiliation: Orbital, Plastic and Lacrimal Unit, Royal Victorian Eye and Ear Hospital, Melbourne, Victoria, Australia.
authors.forename: Jagjit Singh
authors.initials: JS
authors.lastname: Gilhotra
authors.forename: Alan A
authors.initials: AA
authors.lastname: McNab
authors.forename: Penny
authors.initials: P
authors.lastname: McKelvie
authors.forename: Brett A
authors.initials: BA
authors.lastname: O'Donnell
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009915:Orbit / Q000293:injuries*; D009917:Orbital Fractures / Q000601:surgery*; D019736:Prostheses and Implants / Q000009:adverse effects*; D019315:Retrobulbar Hemorrhage / Q000000981:diagnostic imaging / Q000209:etiology* / Q000601:surgery; D012189:Retrospective Studies; D012826:Silicone Elastomers / Q000009:adverse effects; D014057:Tomography, X-Ray Computed
chemical_list: D012826:Silicone Elastomers