Ofloxacin for Ocular Infections

Efficacy and Treatment Approach

The American Academy of Ophthalmology recommends a broad-spectrum topical antibiotic for any patient presenting with corneal abrasion following trauma to prevent bacterial keratitis 1
Single-drug therapy using a fluoroquinolone like ofloxacin has been shown to be as effective as combination therapy utilizing fortified antibiotics for treating corneal infections 1, 2
Prophylactic topical antibiotics following corneal abrasion have been shown to prevent ulceration when treatment is started within 24 hours of the abrasion 1, 2
For contact lens wearers with corneal abrasion, fluoroquinolones like ofloxacin are particularly appropriate due to their coverage of Pseudomonas aeruginosa, a common pathogen in contact lens-related infections 1, 3

For corneal abrasions: More frequent dosing is recommended initially (every 5-15 minutes as a loading dose followed by hourly application) for severe cases, while less frequent dosing (4 times daily) may be sufficient for minor abrasions 1, 4
Some pathogens (e.g., Streptococci, anaerobes) reportedly have variable susceptibility to fluoroquinolones, and the prevalence of resistance appears to be increasing 2, 5
Individual risk factors for fluoroquinolone resistance include recent fluoroquinolone use, hospitalization, advanced age, and recent ocular surgery 4, 6
For severe corneal infections (deep stromal involvement or infiltrates larger than 2 mm with extensive suppuration), fortified antibiotics might be considered instead of or in addition to fluoroquinolones 4, 5
Methicillin-resistant Staphylococcus aureus (MRSA) isolates generally have poor susceptibility to fluoroquinolones, which may limit efficacy in some cases 5, 6