Diagnosis and treatment of chronic postoperative bacterial endophthalmitis.

Chronic postoperative bacterial endophthalmitis has recently assumed a prominent role in differential diagnosis of inflammation following extracapsular cataract extraction with posterior chamber intraocular lens implantation. The optimal diagnostic and therapeutic approach to this entity has not yet been clearly defined. We present a case of chronic postoperative Propionibacterium acnes endophthalmitis in which the diagnosis was made by anterior chamber paracentesis, and topical, periocular, and systemic antibiotic therapy resolved the inflammation. Anterior chamber paracentesis for aerobic and anaerobic cultures may be an appropriate initial diagnostic step in suspected cases. While successful treatment may require surgical intervention in some cases, others may respond to antibiotic therapy alone.