What is the appropriate management for a corneal abrasion?

Management of Corneal Abrasion

All corneal abrasions require prophylactic topical broad-spectrum antibiotics started within 24 hours to prevent bacterial keratitis and subsequent ulceration, with specific attention to contact lens-related injuries and traumatic abrasions which carry the highest infection risk. 1

Risk Stratification and Antibiotic Selection

The 2024 American Academy of Ophthalmology Bacterial Keratitis Preferred Practice Pattern provides clear guidance on antibiotic prophylaxis:

High-Risk Abrasions (Require Antipseudomonal Coverage)

• Contact lens-related abrasions: These patients need antipseudomonal topical antibiotics (fluoroquinolones such as ciprofloxacin 0.3%, ofloxacin 0.3%, or levofloxacin 1.5%) 1, 2
• CRITICAL: Do NOT patch the eye or use therapeutic contact lenses in contact lens wearers—this significantly increases bacterial keratitis risk 1

All Traumatic Abrasions

• Broad-spectrum topical antibiotic recommended for any corneal abrasion following trauma to prevent both bacterial AND fungal infection 1
• Treatment must be initiated within 24 hours of injury to prevent ulceration 1

Antibiotic Formulation Considerations

• Topical antibiotic eye drops are preferred over ointments as they achieve higher corneal tissue levels 1
• Ointments may be used at bedtime for less severe cases as adjunctive therapy 1

Pain Management

Topical NSAIDs are the most effective pain control strategy, demonstrating strong evidence for pain reduction at 24 and 48 hours while reducing oral analgesic requirements by 53% 3

Pain Control Algorithm:

1. First-line: Topical NSAIDs (strong evidence for efficacy and safety) 3
2. Adjunctive: Oral analgesics as needed 2, 4
3. Topical anesthetics: May be dispensed for home use (≤1.5-2 mL total for first 24 hours only, every 30 minutes as needed) for simple abrasions, though evidence remains limited 5
4. Cycloplegics: NOT recommended for uncomplicated abrasions—evidence does not support routine use 2

What NOT to Do

Eye Patching is Contraindicated

• Do not patch corneal abrasions—multiple well-designed studies show patching does not improve pain, may delay healing, and increases infection risk, particularly in contact lens wearers 1, 2, 4, 3

Follow-Up Strategy

Patients Who May Not Need 24-Hour Follow-Up:

• Small abrasions (≤4 mm)
• Uncomplicated presentation
• Normal vision
• Resolving symptoms 2

Mandatory Follow-Up at 24 Hours:

• All other patients
• Any abrasion >4 mm
• Contact lens-related injuries
• Vision changes 2

Immediate Ophthalmology Referral Required:

• Symptoms worsening or not improving
• Corneal infiltrate or ulcer development
• Significant vision loss
• Any suspicion of penetrating injury 2, 6

Additional Considerations

Tetanus Prophylaxis

• Consider if foreign body was present or mechanism suggests contamination 6, 7

Patient Education

• Warn about signs of infection: increased redness, pain, photophobia, or discharge
• Contact lens wearers should discontinue lens use until completely healed
• Emphasize the ongoing infection risk even with antibiotic use 1

Evidence Quality Note

While the 2024 AAO guidelines strongly recommend antibiotic prophylaxis for corneal abrasions 1, a 2025 Cochrane review found very low certainty evidence regarding antibiotic efficacy in preventing infection 8. However, given the potentially sight-threatening consequences of bacterial keratitis, the established guideline recommendation for prophylactic antibiotics should be followed, particularly in high-risk scenarios (contact lens wear, trauma). The guideline explicitly states that prophylactic antibiotics prevent ulceration when started within 24 hours 1.