For a corneal abrasion not related to contact lens wear, which topical antibiotic is commonly recommended?

For a corneal abrasion not related to contact lens wear, which topical antibiotic is commonly recommended?

• A. Ciprofloxacin ointment
• B. Gentamicin eyedrops
• C. Erythromycin ointment
• D. Bacitracin ointment

Answer: (C)

When a corneal abrasion occurs without contact lens wear, the goal is to prevent infection while protecting the healing cornea. Erythromycin ointment fits this well because it provides broad coverage against the common Gram-positive bacteria that normally colonize the ocular surface (like Staphylococcus and Streptococcus) and has a favorable safety profile with minimal toxicity to corneal tissue. The ointment form also stays on the eye longer, helping sustain antimicrobial exposure during healing. Other options have downsides in this scenario. Gentamicin drops can be effective but carry a higher risk of corneal epithelial toxicity, which can delay healing. Ciprofloxacin is strong and often reserved for suspected Pseudomonas infections or contact lens–related keratitis, where broader or different coverage is needed. Bacitracin ointment has limited activity against many typical ocular pathogens and limited penetration, making it less reliable for corneal abrasions. So, erythromycin ointment stands out as a safe, effective first choice for preventing infection in non–contact lens–associated corneal abrasions.

When a corneal abrasion occurs without contact lens wear, the goal is to prevent infection while protecting the healing cornea. Erythromycin ointment fits this well because it provides broad coverage against the common Gram-positive bacteria that normally colonize the ocular surface (like Staphylococcus and Streptococcus) and has a favorable safety profile with minimal toxicity to corneal tissue. The ointment form also stays on the eye longer, helping sustain antimicrobial exposure during healing.

Other options have downsides in this scenario. Gentamicin drops can be effective but carry a higher risk of corneal epithelial toxicity, which can delay healing. Ciprofloxacin is strong and often reserved for suspected Pseudomonas infections or contact lens–related keratitis, where broader or different coverage is needed. Bacitracin ointment has limited activity against many typical ocular pathogens and limited penetration, making it less reliable for corneal abrasions.

So, erythromycin ointment stands out as a safe, effective first choice for preventing infection in non–contact lens–associated corneal abrasions.