What is the appropriate management for a corneal abrasion?

Management of Corneal Abrasion

All patients with corneal abrasions should receive prophylactic broad-spectrum topical antibiotics within 24 hours of injury, with specific attention to contact lens-related and traumatic abrasions that require antipseudomonal coverage. 1

Antibiotic Prophylaxis

Indications and Timing

• Topical antibiotics are mandatory for all corneal abrasions, particularly those associated with contact lens wear or trauma, as prophylaxis prevents progression to bacterial keratitis and corneal ulceration when initiated within 24 hours 1
• This strategy prevents both bacterial and fungal superinfection 1

Antibiotic Selection by Risk Category

Contact Lens-Related Abrasions:

• Require antipseudomonal coverage due to high risk of Pseudomonas keratitis 1
• Fluoroquinolones (ciprofloxacin 0.3%, ofloxacin 0.3%, or levofloxacin 1.5%) are FDA-approved options 1

Traumatic Abrasions (non-contact lens):

• Broad-spectrum topical antibiotic recommended 1
• Antibiotic ointments may be useful at bedtime for less severe cases 1

Critical Contraindications

• Do NOT patch the eye in contact lens-related abrasions due to increased risk of secondary bacterial keratitis 1
• Do NOT use therapeutic contact lenses in contact lens-associated abrasions for the same reason 1

Pain Management

First-Line Analgesic Options

Topical NSAIDs (Preferred):

• Demonstrate strong evidence for pain reduction at 24 hours (SMD -0.69) and 48 hours (SMD -0.56) 2
• Reduce oral analgesic use by 53% compared to control 2
• No significant healing delays or complications 2

Topical Anesthetics (Emerging Evidence):

• For simple corneal abrasions only, commercial topical anesthetics (proparacaine, tetracaine, oxybuprocaine) may be prescribed for home use 3
• Dosing: up to every 30 minutes as needed during first 24 hours only 3
• Maximum dispensed: 1.5-2 mL total (24-hour supply), with remainder discarded after 24 hours 3
• Important caveat: This requires strict adherence to the full diagnostic protocol to exclude complicated abrasions 3

Oral Analgesics:

• Appropriate adjunct for pain control 4, 5

Interventions NOT Recommended

• Topical cycloplegics: No evidence of benefit for uncomplicated abrasions 4, 5, 2
• Eye patching: Does not improve pain, may delay healing, and increases complication risk 4, 5, 2
• Bandage contact lenses: No significant pain benefit and carries infection risk 2

Examination Essentials

Key Diagnostic Steps

• Apply fluorescein stain: abrasion appears yellow under normal light, green under cobalt blue light 4, 5
• Carefully examine for retained foreign bodies and remove if present 4
• Exclude serious pathology: penetrating injury, infective keratitis, corneal ulcer, ophthalmic zoster 4, 6

Follow-Up Protocol

Patients NOT Requiring 24-Hour Follow-Up:

• Small abrasions (≤4 mm) 4
• Uncomplicated presentation 4
• Normal vision 4
• Resolving symptoms 4

Patients Requiring 24-Hour Ophthalmology Follow-Up:

• All other patients not meeting above criteria 4
• Any abrasion >4 mm 4

Emergent Ophthalmology Referral Indicated For:

• Symptoms not improving or worsening 4
• Corneal infiltrate or ulcer 4
• Significant vision loss 4
• Suspected penetrating eye injury 4, 6
• Signs of bacterial keratitis or sight-threatening infection 6

Common Pitfalls to Avoid

• Failing to prescribe antibiotics within 24 hours eliminates the proven benefit in preventing ulceration 1
• Using eye patches in any corneal abrasion, especially contact lens-related, increases infection risk 1, 2
• Inadequate foreign body examination can lead to persistent symptoms and complications 4
• Prescribing topical anesthetics for home use without strict protocols risks corneal toxicity; only appropriate for simple abrasions with proper safeguards 3