title: Corneal perforation associated with argon laser photocoagulation for a retinal tear.
abstract: OBJECTIVE
  To report a corneal perforation during argon laser photocoagulation around a retinal tear following pneumatic retinopexy.
  
  
  METHODS
  The patient was examined and found to have a corneal perforation with pigment in the base of the wound. To help explain this phenomenon, we evaluated the ability of argon blue-green laser to create a corneal perforation in a cadaver eye.
  
  
  RESULTS
  In a cadaver eye, we induced a corneal perforation with argon laser only when a pigmented substance was present on the corneal surface.
  
  
  CONCLUSIONS
  We hypothesize that pigmented material such as an eyelash or mascara caught between the cornea and contact lens interface may have facilitated this rare complication. Clinicians should be wary of any pigmented substance on the surface of the cornea or ophthalmoscopic lens when performing argon laser photocoagulation.
authors.affiliation: Department of Ophthalmology, University of California, Davis, Sacramento 95816, USA. lsmorse@ucdavis.edu
authors.forename: M A
authors.initials: MA
authors.lastname: Keithahn
authors.forename: R H
authors.initials: RH
authors.lastname: Gross
authors.forename: M J
authors.initials: MJ
authors.lastname: Mannis
authors.forename: R B
authors.initials: RB
authors.lastname: Morales
authors.forename: L S
authors.initials: LS
authors.lastname: Morse
mesh_terms: D000368:Aged; D001128:Argon; D002102:Cadaver; D003315:Cornea / Q000473:pathology; D065306:Corneal Injuries; D005260:Female; D006801:Humans; D017075:Laser Coagulation / Q000009:adverse effects*; D012086:Reoperation; D012167:Retinal Perforations / Q000601:surgery*; D014950:Wounds, Penetrating / Q000209:etiology* / Q000473:pathology
chemical_list: D001128:Argon