Antibiotics in endophthalmitis: microbiological and pharmacokinetic considerations.

Ocular infections must be treated with active antibiotics which could be administered by different routes: topical, systemic or intravitreal. In the case of endophthalmitis, the most important factor to avoid permanent damage of retina is an early antibiotic onset. Topical application of these drugs would be ineffective in the treatment of endophthalmitis, because of their poor penetration into the ocular globe.