Challenging Case of Postoperative Nocardia Endophthalmitis

Purpose: To describe a case of postoperative Nocardia endophthalmitis that proved to be challenging. Methods: A 64-year-old woman presented with a clinical picture of postoperative endophthalmitis, which was managed by vitrectomy with intraocular lens explantation. Nocardia puris, sensitive to amikacin, cotrimoxazole (trimethoprim–sulfamethoxazole), and ciprofloxacin, was isolated in culture. The patient received intracameral and intravenous amikacin. On the sixth postoperative day, the infection appeared controlled; however, a macular infarction developed. One month later, the patient presented with recurrent infection (iris nodule and vitritis). After consultation with an infectious disease specialist, oral trimethoprim–sulfamethoxazole and oral moxifloxacin were started. Treatment continued for 6 months. Results: At the 3-month and 6-month follow-ups, the iris nodules had regressed in size with no new visible lesions. The vitreous cavity was clear, and the retina was attached; however, the best-corrected visual acuity was poor because of the macular infarction. Conclusions: This case highlights the importance of obtaining a microbiological diagnosis with sensitivity in cases of Nocardia endophthalmitis and its use in the aggressive management of the infection, including frequent monitoring for recurrences.