Cornea
Corneal Foreign Body / Rust Ring
Also known as: corneal foreign body, rust ring, metal foreign body, embedded corneal foreign body, subtarsal foreign body, welding foreign body, grinding foreign body, corneal FB
Clinical decision support only
Overview
A superficial corneal foreign body is common in optometry, but metal-on-metal and high-velocity mechanisms must be treated as possible penetrating injury or intraocular foreign body until excluded. The workflow is VA first, mechanism, lid eversion, fluorescein/Seidel assessment when safe, superficial removal only when clearly safe and within competence, and urgent ophthalmology/ED for open-globe, IOFB, deep/central, infected, or uncertain cases.
What OptoGuide™ covers for corneal foreign body / rust ring
- Recognition patterns — symptoms, signs, and differentiators
- Don't-miss risks and escalation triggers
- Management tiers with linked Australian therapeutics
- Referral urgency, specialty, and letter drafting
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