Klebsiella Endogenous Endophthalmitis During the COVID-19 Pandemic

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Purpose: To describe the characteristics of Klebsiella pneumoniae endogenous endophthalmitis (KEE) encountered during the COVID-19 pandemic. Methods: This retrospective consecutive case series evaluated eyes that presented with KEE between March 2020 and July 2022. Results: Seven eyes of 5 patients developed KEE. Between January 2020 and July 2022, KEE was observed in 42% of consecutive EE cases compared with 7.8% during the preceding 13 years. COVID-19 was positive in 4 of 5 patients before they developed KEE. Only 1 patient presented with a VA better than hand motions (20/400). All eyes were treated with urgent vitrectomy and intravitreal and systemic antibiotics. No improvement in vision occurred in any patient; VA remained light perception to no light perception in 60% of eyes. Conclusions: The visual prognosis in KEE is extremely poor. The presence of a preceding COVID-19 infection in 80% of patients may signal a new risk factor for KEE. Patients with a hypervirulent Klebsiella syndrome should be routinely screened for EE.

Original languageEnglish (US)
Pages (from-to)316-321
Number of pages6
JournalJournal of VitreoRetinal Diseases
Issue number4
StatePublished - Jul 1 2023

All Science Journal Classification (ASJC) codes

  • Ophthalmology


  • endophthalmitis
  • infectious retinitis
  • inflammatory and infectious diseases


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