title: [Vitrectomy for proliferative diabetic retinopathy].
abstract: OBJECTIVE
  We reviewed the outcome of vitrectomy for proliferative diabetic retinopathy (DR) and evaluated factors affecting the final visual outcome.
  
  
  METHODS
  We performed primary vitreous surgery for proliferative DR in 148 eyes of 118 cases in three years from July 1999 to August 2002. All cases were followed for at least 3 months. We excluded vitreous surgery for diabetic maculopathy. Ages ranged from 24 to 80 (mean 57) years. Average postoperative follow-up period was 15 months. We evaluated the stage of DR by the new Fukuda classification.
  
  
  RESULTS
  Preoperative classification consisted of BIV (54 eyes, 36%), BV (94 eyes, 64%), and BV + VI (36 eyes). Final visual acuity was improved by 2 lines or more in 102 eyes (69%), remained unchanged in 28 eyes (19%), and decreased by two lines or more in 18 eyes (12%). There was a statistical correlation between preoperative visual acuity and final visual acuity. Earlier stages of DR had better visual outcome. Compared to the surgical outcome in the 1990s, the percentage of worsened eyes decreased.
  
  
  CONCLUSIONS
  Vitrectomy for proliferative DR may be beneficial if performed in the earlier stages of DR or if the patient has better visual acuity before vitrectomy.
authors.affiliation: Department of Ophthalmology, Kansai Medical University, Moriguchi, Japan.
authors.forename: Akiko
authors.initials: A
authors.lastname: Higuchi
authors.forename: Haruhiko
authors.initials: H
authors.lastname: Yamada
authors.forename: Emi
authors.initials: E
authors.lastname: Kawai
authors.forename: Yoshito
authors.initials: Y
authors.lastname: Fujiseki
authors.forename: Mitsumasa
authors.initials: M
authors.lastname: Wada
authors.forename: Katsuji
authors.initials: K
authors.lastname: Kiuchi
authors.forename: Yoshiko
authors.initials: Y
authors.lastname: Uchida
authors.forename: Keizo
authors.initials: K
authors.lastname: Minamino
authors.forename: Miyo
authors.initials: M
authors.lastname: Matsumura
mesh_terms: D000328:Adult; D000368:Aged; D003930:Diabetic Retinopathy / Q000503:physiopathology / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D016896:Treatment Outcome; D014786:Vision Disorders / Q000209:etiology; D014785:Vision, Ocular / Q000502:physiology*; D014792:Visual Acuity; D014821:Vitrectomy