title: Spontaneous extrusion of a stainless steel glaucoma drainage implant (Ex-PRESS).
abstract: OBJECTIVE
  To report a case of spontaneous extrusion of a stainless steel glaucoma drainage implant (Ex-PRESS).
  
  
  METHODS
  An Ex-PRESS was implanted under the conjunctiva in a 76-year-old man with primary open-angle glaucoma.
  
  
  RESULTS
  Two years after implantation, the Ex-Press extruded spontaneously. Despite this adverse event, there was no increase in intraocular pressure.
  
  
  CONCLUSIONS
  This is the first report of spontaneous extrusion of an Ex-PRESS device. Implanting the device under a scleral flap should be considered to avoid adverse events such as extrusion or conjunctival erosion.
authors.affiliation: Department of Ophthalmology, Sant'Antonio Hospital, Padova, Italy. marco.tav@libero.it
authors.forename: M
authors.initials: M
authors.lastname: Tavolato
authors.forename: S
authors.initials: S
authors.lastname: Babighian
authors.forename: A
authors.initials: A
authors.lastname: Galan
mesh_terms: D000368:Aged; D000867:Anterior Chamber / Q000473:pathology; D018463:Filtering Surgery / Q000009:adverse effects* / Q000295:instrumentation; D005500:Follow-Up Studies; D005548:Foreign-Body Migration / Q000209:etiology* / Q000473:pathology; D020327:Glaucoma Drainage Implants / Q000009:adverse effects*; D005902:Glaucoma, Open-Angle / Q000601:surgery*; D006801:Humans; D008297:Male; D011475:Prosthesis Failure