title: Electroretinogram in the diagnosis of endophthalmitis after intraocular lens implantation.
abstract: OBJECTIVE
  To determine whether single flash electroretinograms can assist in the diagnosis of eyes with endophthalmitis after intraocular lens implantation.
  
  
  METHODS
  Sixteen eyes with postoperative endophthalmitis treated with vitrectomy or intraocular lens removal were studied. The preoperative electroretinogram findings, duration until the onset of endophthalmitis, culture results, and postoperative visual acuity were analyzed.
  
  
  RESULTS
  Four eyes with a b-wave/a-wave (b/a) ratio less than 1.0 and early onset of endophthalmitis within 1 week had worse postoperative visual acuity (no light perception to 20/200) than the other 12 eyes (20/100 to 20/15) (P =.0035). Pseudomonas aeruginosa and Enterococcus faecalis were cultured in these 4 eyes.
  
  
  CONCLUSIONS
  The combination of a b/a ratio less than 1.0 and early onset of endophthalmitis may indicate poor prognosis in a patient with postoperative endophthalmitis.
authors.affiliation: Department of Ophthalmology, Nagoya University School of Medicine, Nagoya, Japan. naoichi@med.nagoya-u.ac.jp
authors.forename: N
authors.initials: N
authors.lastname: Horio
authors.forename: H
authors.initials: H
authors.lastname: Terasaki
authors.forename: E
authors.initials: E
authors.lastname: Yamamoto
authors.forename: Y
authors.initials: Y
authors.lastname: Miyake
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D020878:Device Removal; D004596:Electroretinography / Q000379:methods*; D009877:Endophthalmitis / Q000175:diagnosis* / Q000382:microbiology / Q000601:surgery; D013293:Enterococcus faecalis / Q000302:isolation & purification*; D015818:Eye Infections, Bacterial / Q000175:diagnosis* / Q000209:etiology / Q000601:surgery; D005260:Female; D016908:Gram-Positive Bacterial Infections / Q000175:diagnosis* / Q000209:etiology / Q000601:surgery; D006801:Humans; D019654:Lens Implantation, Intraocular / Q000009:adverse effects*; D008297:Male; D008875:Middle Aged; D011552:Pseudomonas Infections / Q000175:diagnosis* / Q000209:etiology / Q000601:surgery; D012086:Reoperation; D014792:Visual Acuity; D014821:Vitrectomy