Abstract
Objective To report the clinical outcome of chronic Bacillus endophthalmitis after cataract surgery. Design Retrospective, noncomparative case series. Participants Five eyes of five patients with late-onset or recurrent inflammation after exposure to bacteria-contaminated viscoelastic material were studied. Intervention Repeated vitrectomies, wide excision of the remnant posterior capsule, and intravitreal injections of antibiotics in five patients. Eventual explantation of the intraocular lens in four patients. Main outcome measures Final visual acuities and results of microbiologic studies of aqueous and vitreous specimens as well as pathologic studies using hematoxylin–eosin, Gram, and periodic acid-Schiff (PAS) stain of explanted capsular remnants were obtained. Results Final visual acuity of 20/40 or better was obtained in three patients. Bacillus species were grown from two cases. PAS- and Gram-positive microorganisms were identified in the capsular tissue in three of four patients who had explantation of the intraocular lens. Conclusions A chronic form of Bacillus endophthalmitis is described for the first time. The clinical outcome is similar to chronic endophthalmitis caused by other organisms.
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