Chloramphenicol 4. Responsible topical use in ophthalmology

Area of Science:

• Ophthalmology
• Microbiology
• Pharmacology

Background:

• Chloramphenicol is a broad-spectrum antibiotic frequently used topically for ocular infections.
• Its efficacy is attributed to good corneal penetration and wide antimicrobial activity.
• Concerns regarding human exposure and restrictions in food animals necessitate a re-evaluation.

Purpose of the Study:

• To review the current indications for chloramphenicol in ocular therapeutics.
• To discuss the risks and benefits of its use in specific conditions like keratitis.
• To explore and present alternative treatment options.

Main Methods:

• Literature review of studies on chloramphenicol's efficacy and safety in ophthalmology.
• Analysis of case reports and clinical guidelines regarding its use.
• Comparative review of alternative antimicrobial agents for ocular infections.

Main Results:

• Chloramphenicol demonstrates broad-spectrum activity and penetrates ocular tissues effectively.
• Routine use in corneal ulceration or keratitis is generally not recommended.
• Hypopyon, often present in severe infections, is typically sterile, questioning the need for broad-spectrum antibiotics.

Conclusions:

• The role of chloramphenicol in ocular therapeutics requires careful consideration due to safety concerns and emerging alternatives.
• Judicious use is advised, with a preference for alternatives in cases of keratitis or sterile hypopyon.
• Further research into safer and equally effective topical ocular antimicrobials is warranted.