title: Tear in the trabecular meshwork caused by an airsoft gun.
abstract: OBJECTIVE
  To report a case of a tear in the trabecular meshwork caused by an airsoft gun, a toy that propels a plastic bullet.
  
  
  METHODS
  Case report.
  
  
  RESULTS
  A 7-year-old Japanese boy sustained an ocular injury to the right eye from an airsoft gun. Ophthalmic examination 1 hour after the injury showed a best-corrected visual acuity in the injured eye of hand motion, corneal abrasion and edema, hyphema, and commotio retinae. Gonioscopy 6 days after the injury revealed a tear in the trabecular meshwork as well as an angle recession. Ultrasound biomicroscopy (UBM) strongly suggested that the tear extended into Schlemm's canal. Corneal abrasion and edema, hyphema, and commotio retinae resolved over 10 days, and best-corrected visual acuity improved to 20/15. Two months after the injury, the trabecular meshwork had not healed.
  
  
  CONCLUSIONS
  Airsoft guns can cause a full-thickness tear in the trabecular meshwork, which may contribute to development of late-onset glaucoma. UBM is useful to evaluate the tomographic features of the disrupted trabecular meshwork. The potential force of airsoft guns to cause substantial ocular injuries should be recognized. Wearing ocular protection should be mandatory while playing with airsoft guns.
authors.affiliation: 2-6-17 Ishida Ganka , Honcho Joetsu, Niigata 943-0832, Japan. isidaeye@white.plala.org
authors.forename: S
authors.initials: S
authors.lastname: Endo
authors.forename: N
authors.initials: N
authors.lastname: Ishida
authors.forename: T
authors.initials: T
authors.lastname: Yamaguchi
mesh_terms: D002648:Child; D005131:Eye Injuries / Q000000981:diagnostic imaging / Q000209:etiology*; D005389:Firearms; D006801:Humans; D008297:Male; D012421:Rupture; D014129:Trabecular Meshwork / Q000000981:diagnostic imaging / Q000293:injuries*; D014463:Ultrasonography; D014792:Visual Acuity; D014948:Wounds, Gunshot / Q000000981:diagnostic imaging / Q000209:etiology*