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Updated: Aug 2, 2026

Intravitreal Injection and Quantitation of Infection Parameters in a Mouse Model of Bacterial Endophthalmitis
Published on: February 6, 2021
Oxacillin-resistant Staphylococcus aureus endophthalmitis after ganciclovir intraocular implant
J C Williamson1, S R Virata, R H Raasch
1Department of Pharmacy, University of North Carolina Hospitals and Clinics, Chapel Hill, North Carolina, USA. johnwill@wfubmc.edu
Purpose:
To describe a patient who developed oxacillin-resistant Staphylococcus aureus endophthalmitis after insertion of a ganciclovir intraocular implant.
Method:
Case report.
Results:
A 42-year-old man with acquired immunodeficiency syndrome (AIDS) and a history of cytomegalovirus retinitis was admitted with right-sided eye pain and decreased visual acuity 10 days after receiving a second ganciclovir intraocular implant in the right eye. A therapeutic vitrectomy, right eye, was performed on the day of admission. A vitreal tap produced frank pus and white, fluffy debris. Cultures of the vitreal fluid grew oxacillin-resistant S aureus, sensitive only to vancomycin, rifampin, and trimethoprim/sulfamethoxazole. The patient was successfully treated with removal of both ganciclovir implants in the right eye and a 4-week course of vancomycin and rifampin. However, the infection left the patient blind in the infected eye.
Conclusion:
Bacterial endophthalmitis is an infrequent but serious complication of the ganciclovir intraocular implant.
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