title: Surgical Management of Anterior Chamber Migration of a Dexamethasone Intravitreal Implant.
abstract: OBJECTIVE
  Anterior chamber migration of the dexamethasone intravitreal implant (Ozurdex; Allergan, Irvine, CA) may lead to corneal edema and elevated intraocular pressure, warranting removal of the implant.
  
  
  METHODS
  A 59-year-old patient with a history of prior vitrectomy, a posterior chamber intraocular lens with a disrupted posterior capsule, and a large inferior peripheral iridectomy presented with decreased vision due to corneal edema following dexamethasone intravitreal implant injection. The authors describe their technique for implant removal, which uses standard vitreoretinal instrumentation, viscoelastic, a modified Sheets glide, and angled forceps in order to avoid fragmentation of the implant and limit iatrogenic morbidity.
  
  
  RESULTS
  The implant was successfully explanted. Postoperatively, the patient experienced improvement in the corneal edema, and after Descemet's stripping endothelial keratoplasty achieved a final best corrected visual acuity of 20/60 at final 12-month follow-up.
  
  
  CONCLUSIONS
  Patients with aphakic lens status, anterior chamber intraocular lens with a disrupted posterior capsule, posterior chamber intraocular lens and a ruptured capsule, prior vitrectomy, and large peripheral iridectomies may be susceptible to migration of dexamethasone intravitreal implants into the anterior chamber.
authors.forename: Christopher R
authors.initials: CR
authors.lastname: Stelton
authors.forename: Justin
authors.initials: J
authors.lastname: Townsend
authors.forename: Luke T
authors.initials: LT
authors.lastname: Peterson
authors.forename: Rahul N
authors.initials: RN
authors.lastname: Khurana
authors.forename: Steven
authors.initials: S
authors.lastname: Yeh
mesh_terms: D000867:Anterior Chamber / Q000473:pathology / Q000601:surgery*; D015715:Corneal Edema / Q000139:chemically induced / Q000601:surgery*; D057111:Descemet Stripping Endothelial Keratoplasty; D020878:Device Removal / Q000379:methods; D003907:Dexamethasone / Q000009:adverse effects*; D004343:Drug Implants; D005548:Foreign-Body Migration / Q000209:etiology / Q000601:surgery*; D005938:Glucocorticoids / Q000009:adverse effects*; D006801:Humans; D058449:Intravitreal Injections; D008269:Macular Edema / Q000188:drug therapy; D008297:Male; D008875:Middle Aged; D013508:Ophthalmologic Surgical Procedures; D014822:Vitreous Body
chemical_list: D004343:Drug Implants; D005938:Glucocorticoids; D003907:Dexamethasone