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Cornea

Open Globe Injury / Intraocular Foreign Body

Also known as: open globe, penetrating eye injury, perforating eye injury, intraocular foreign body, IOFB, ruptured globe, globe rupture, hammering eye injury

Filed as: Emergency

Source-cited from the record's own evidence list. Clinical content programme led by Dr Ankit Mathur, PhD, Grad Cert Ocu Thera, B.S. Optom. How the clinical content is governed

Overview

A full-thickness wound of the cornea or sclera, with or without a retained intraocular foreign body (IOFB). The mechanism carries suspicion: any high-velocity event — hammering metal on metal, grinding, drilling, power tools — supports managing the eye as an open globe until ophthalmic assessment and appropriate imaging have excluded occult penetration, because a small self-sealing entry wound can leave a comfortable, white, 6/6 eye. The immediate priorities are to protect the globe from any pressure, withhold drops and ointment, keep the patient fasted, control vomiting, and arrange same-day transfer to an ophthalmic surgical unit. CT orbit, at the receiving hospital, is the imaging of choice for suspected IOFB — requested with the referral, never a reason to delay transfer. MRI is never used when a metallic IOFB is possible.

Recognition

Symptoms: what patients report

  • A high-velocity mechanism — hammering, grinding, drilling, power tools — with or without a felt impact.
  • Pain ranging from severe to minimal: a sealed-entry IOFB can be near-painless.
  • Reduced vision in the affected eye, from mild blur to severe loss.
  • Sudden onset at the moment of injury; a foreign-body sensation may or may not be present.
  • Fluid leaking from the eye (tears that will not stop) after trauma.

Signs: what the examination shows

  • Peaked, teardrop or irregular pupil — the iris points to the wound.
  • Shallow or flat anterior chamber compared with the fellow eye.
  • Positive Seidel test — aqueous streaming through fluorescein at the wound.
  • 360-degree or bullous subconjunctival haemorrhage after blunt trauma (may hide a scleral rupture).
  • Uveal tissue (dark knuckle) presenting at or through the cornea or sclera.
  • Marked hypotony — but a sealed wound can retain normal pressure.
  • Visible entry wound, lid laceration in line with the globe, or a track through the cornea.
  • Vitreous haemorrhage or a poor view after a projectile mechanism.
  • New lens opacity or capsular disruption after trauma.

What OptoGuide™ covers for open globe injury / intraocular foreign body

  • Pattern reasoning: what this combination of findings points to, and its differentiators
  • Don't-miss risks and escalation triggers
  • Management tiers with linked Australian therapeutics
  • Referral urgency, specialty, and letter drafting

Sources

Full bibliography

Other cornea conditions

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