title: Streptococcus bovis causing perforating corneal ulcer.
abstract: OBJECTIVE
  The purpose of this study was to report the first case of Streptococcus bovis causing a perforating corneal ulcer in a healthy adult.
  
  
  METHODS
  Observational case report.
  
  
  RESULTS
  A healthy 77-year-old man presented with rapidly progressing corneal ulcer, resulting in perforation within 4 days. Preoperative and operative cultures isolated the same organism, S. bovis, susceptible only to vancomycin and ceftriaxone. The patient underwent a successful corneal transplantation, with histopathology revealing full-thickness necrosis and scattered bacteria.
  
  
  CONCLUSIONS
  Although a rare pathogen in ocular infections, we report a case of devastating corneal infection caused by S. bovis and highlight consideration of this pathogen in rapidly progressing corneal ulcers.
authors.affiliation: Department of Ophthalmology, Stanford University School of Medicine, Stanford, CA 94304, USA. atuljain@stanford.edu
authors.forename: Atul
authors.initials: A
authors.lastname: Jain
authors.forename: Rajen U
authors.initials: RU
authors.lastname: Desai
authors.forename: Ruby
authors.initials: R
authors.lastname: Jain
authors.forename: Leelanand
authors.initials: L
authors.lastname: Rachakonda
mesh_terms: D000368:Aged; D016039:Corneal Transplantation; D003320:Corneal Ulcer / Q000382:microbiology* / Q000473:pathology / Q000601:surgery; D018450:Disease Progression; D015818:Eye Infections, Bacterial / Q000150:complications*; D006801:Humans; D008297:Male; D013290:Streptococcal Infections / Q000150:complications*; D016985:Streptococcus bovis; D013997:Time Factors