Demonstration of bacterial biofilms in culture-negative silicone stent and jones tube

Kami Parsa, Christoph Schaudinn, Amita Gorur, Parish P. Sedghizadeh, Thomas Johnson, David T. Tse, John W. Costerton

Research output: Contribution to journalArticlepeer-review

30 Scopus citations


PURPOSE:: To demonstrate the presence of bacterial biofilms on a dacryocystorhinostomy silicone stent and a Jones tube. METHODS:: One dacryocystorhinostomy silicone stent and one Jones tube were removed from 2 patients who presented with an infection of their respective nasolacrimal system. Cultures were obtained, and the implants were processed for scanning electron microscopy and confocal laser scanning microscopy, advanced microscopic methods that are applicable for detection of uncultivable biofilm organisms. RESULTS:: Routine bacterial cultures revealed no growth, but bacterial biofilms on outer and inner surfaces of both implants were confirmed by advanced microscopic techniques. CONCLUSIONS:: To the authors' knowledge, this is the first article that documents the presence of biofilms on a Crawford stent or a Jones tube on patients who presented with infections involving the nasolacrimal system. Although initial cultures revealed absence of any bacterial growth, confocal laser scanning microscopy and scanning electron microscopy documented bacterial colonization. Clinicians should consider the role of biofilms and the limitation of our standard culturing techniques while treating patients with device- or implant-related infections.

Original languageEnglish (US)
Pages (from-to)426-430
Number of pages5
JournalOphthalmic plastic and reconstructive surgery
Issue number6
StatePublished - Nov 2010

ASJC Scopus subject areas

  • Surgery
  • Ophthalmology


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