NSAID use avoided in later pregnancy per obstetric guidance
Imaging considerations
CT orbits when intraocular foreign body concern
Maternal vision threat prioritization
Shielding per radiology protocol
MRI avoidance if metallic foreign body possible
Material uncertainty treated as metallic until excluded
Ophthalmology input before MRI
Geriatric
Higher risk features
Anticoagulant or antiplatelet use
Hyphema bleeding risk
Lower threshold for imaging and consult
Ocular surface disease
Dry eye complicating symptoms
Slower epithelial healing
Medication tolerability
Cycloplegics
Urinary retention risk
Delirium risk in sensitive patients
NSAIDs
Renal function consideration
GI bleed risk consideration
Pediatrics
Exam challenges
Limited cooperation
Early analgesia strategy
Child life support when available
Lid eversion difficulty
Missed subtarsal foreign body risk
Consider ophthalmology if exam incomplete
Sedation considerations
If removal needed and uncooperative
Procedural sedation pathway per ED protocol
Ophthalmology support if deep corneal foreign body
Non-accidental injury awareness
Inconsistent history
Safeguarding escalation per policy
Document findings carefully
Background
Epidemiology
Frequency and settings
Common ED presentation in occupational settings
Metal grinding and drilling
Lack of eye protection association
Material patterns
Metallic particles common in work injuries
Organic material common in outdoor exposures
Pathophysiology
Tissue response by location
Conjunctival foreign body
Mechanical irritation and inflammation
Trapping in fornices and under lids
Corneal foreign body
Epithelial defect and nociceptor activation
Infection risk from epithelial breach
Metallic rust ring
Oxidation reaction
Corneal staining and inflammation
Intraocular foreign body
Penetration with entrance wound
Endophthalmitis risk from contamination
Therapeutic Considerations
Aftercare principles
Antibiotic prophylaxis rationale
Superinfection prevention in epithelial defects
Higher risk with contact lens use
Cycloplegia rationale
Ciliary spasm reduction
Photophobia relief
Avoid outpatient topical anesthetics
Corneal toxicity and delayed healing risk
Masking of worsening symptoms risk
Patient Discharge Instructions
copy discharge instructions
Eye care at home
No rubbing or pressing on the eye
Avoid contact lenses until cleared
Avoid eye makeup until healed
Antibiotic use as prescribed
Complete course as directed
Wash hands before drops or ointment
Pain control options
Acetaminophen as needed
Ibuprofen as needed if safe
Activity and safety
Protective eyewear for future work
Wraparound goggles for grinding or drilling
Face shield for high-risk tasks
Avoid swimming or hot tubs until healed
Infection risk reduction
Contact lens users higher risk
Return to emergency care now
Worsening pain
Not improving within 24 hours
New severe photophobia
Vision changes
New blurring
New floaters or flashes
New field loss
Increasing redness or discharge
Concern for infection
Concern for corneal ulcer
Persistent foreign body sensation
Possible retained subtarsal foreign body
Possible missed fragment
Follow-up
Recheck in 24 to 48 hours
Confirm healing
Confirm no retained foreign body
Same-day ophthalmology if instructed
Rust ring follow-up
Deep corneal involvement follow-up
References
Clinical guidelines and core sources
Guideline and reference set
American Academy of Ophthalmology EyeNet
Open globe injury assessment and eye shield guidance
Tetanus prophylaxis not recommended for superficial corneal abrasions and foreign bodies without anterior chamber penetration
ACEP Sonoguide ocular emergencies
Ocular ultrasound indications include eye trauma and foreign body
POCUS as adjunct in ocular complaints
ACEP ultrasound guidelines policy statement
Clinical ultrasound guidance includes foreign body applications
Scope and training standards reference
Evidence-based summaries and reviews
StatPearls corneal foreign body
Post-removal care with topical antibiotics and cycloplegics
Complication monitoring and follow-up needs
EyeWiki removal of corneal foreign bodies
Rust ring formation timeline for iron foreign body
Seidel testing after removal
EyeWiki BETT
Standard terminology definitions for penetrating injury and intraocular foreign body
Communication standardization for ocular trauma
Coding standards
WHO ICD-10
T15.0 foreign body in cornea
T15.1 foreign body in conjunctival sac
ICD-10-CM code reference for penetrating wound with foreign body
S05.5 penetrating wound with foreign body of eyeball
Exclusion of retained old intraocular foreign body codes
SymptomDx is an educational tool for medical professionals. It does not replace clinical judgment. Verify all clinical data and drug dosages with authoritative sources.