title: Delayed-onset streptococcus pyogenes endophthalmitis following Ahmed glaucoma valve implantation.
abstract: BACKGROUND
  To report a case of delayed-onset Streptococcus pyogenes endophthalmitis following implantation of an Ahmed glaucoma valve.
  
  
  METHODS
  A 10-year-old patient presented with acute endophthalmitis 1 year after Ahmed glaucoma valve implantation.
  
  
  METHODS
  The conjunctiva and Tenon's capsule over the valve plate had been penetrated by one of the polypropylene fixation sutures. The valve was removed, and pars plana vitrectomy was performed. Vitreous specimens and removal of the discharge over the plate revealed Streptococcus pyogenes.
  
  
  CONCLUSIONS
  This is the first documented case of Streptococcus pyogenes endophthalmitis following Ahmed glaucoma valve implantation. We think the conjunctival buttonhole caused by the polypropylene suture provided an entry site for the infection.
authors.affiliation: Beyoğlu Eye Research and Education Hospital, 81080 Istanbul, Turkey. zerrinbayraktar@yahoo.com
authors.forename: Zerrin
authors.initials: Z
authors.lastname: Bayraktar
authors.forename: Ziya
authors.initials: Z
authors.lastname: Kapran
authors.forename: Sükrü
authors.initials: S
authors.lastname: Bayraktar
authors.forename: Nur
authors.initials: N
authors.lastname: Acar
authors.forename: Yaprak Banu
authors.initials: YB
authors.lastname: Unver
authors.forename: Kemran
authors.initials: K
authors.lastname: Gök
mesh_terms: D002648:Child; D003228:Conjunctiva / Q000382:microbiology; D009877:Endophthalmitis / Q000382:microbiology* / Q000601:surgery; D015818:Eye Infections, Bacterial / Q000209:etiology / Q000601:surgery; D005260:Female; D020327:Glaucoma Drainage Implants / Q000009:adverse effects*; D006801:Humans; D019919:Prosthesis Implantation; D016459:Prosthesis-Related Infections / Q000209:etiology* / Q000601:surgery; D012086:Reoperation; D013290:Streptococcal Infections / Q000209:etiology / Q000601:surgery; D013297:Streptococcus pyogenes / Q000302:isolation & purification*; D014821:Vitrectomy; D014822:Vitreous Body / Q000382:microbiology