Antibiotics versus placebo for acute bacterial conjunctivitis.

Area of Science:

• Ophthalmology
• Infectious Diseases
• Pharmacology

Background:

• Acute bacterial conjunctivitis is a common ocular disorder often treated with antibiotics to speed recovery and prevent complications.
• However, many cases are self-limiting, raising questions about the necessity and efficacy of routine antibiotic prescription.

Approach:

• A systematic review and meta-analysis of 21 randomized controlled trials (RCTs) involving 8805 participants were conducted.
• The review compared topical antibiotic treatments (including fluoroquinolones and non-fluoroquinolones) against placebo/vehicle.
• Data were extracted and analyzed using random-effects meta-analyses, assessing clinical and microbiological cure rates, and side effects.

Key Points:

• Antibiotics showed a modest improvement in clinical cure rates (26% increase) and microbiological cure rates compared to placebo.
• Patients receiving antibiotics had a lower risk of treatment incompletion and persistent infection.
• No serious systemic side effects were reported; fluoroquinolones may reduce ocular side effects compared to non-fluoroquinolones, though evidence is limited.

Conclusions:

• Topical antibiotic use offers a modest benefit in resolving acute bacterial conjunctivitis compared to placebo.
• Antibiotics can be considered for improved clinical and microbiological outcomes, with a low risk of serious side effects.
• Future research should explore antiseptic treatments to address cost and rising antibiotic resistance.